Events Guide

Welcome to the guide! I've done my best to keep things concise, but I've also included my own commentary or notes when it doesn't seem like that's possible, or more explanation is needed. Generally, parts in italics are my own notes to you, the reader.

Each section is titled with the sub-title of the event first, then the name of the event. I opted for this because it seems like they intend for the sub-title to be something like a category. For example, all "Death Guard Fleet" events have the same subtitle, with differing titles depending on the ship. After that I alphabetized the list, but moved all Grand Master Reports to the bottom and put those in the order I encountered them. If all else fail, use the shortcut combination of CTRL and F to search the guide. If you can't find it, it's not in the guide yet, so leave a comment!

Special Considerations:

• In Death Guard Fleet events, the enemy ship's Gun Battery strength is seemingly RANDOM. Additionally, the type of ship is not determined until the Edict actually bumps into it.
  
• Because of the random battery strength, your exact results may vary when choosing the option that in my screenshots may say "The enemy vessel is outclassed." Keep in mind that just because you outclass the enemy vessel, you may not avoid any negative outcomes. In some cases of my testing so far I've still suffered injury to the Edict. In nearly all of my own testing, I had level 3 Gun Batteries and level 3 Void Shields or better.
  
• Lastly, the amount of damage you receive to the Edict as a result of an encounter may also be slightly random. In most of my events I had only 1 point reported, but in at least one case a user took 2 points instead. If I had to speculate it may be related to the difference in Gun Battery level, or yet more randomness..
  
• Grand Master Reports have a degree of randomness to them. I've include the day that I encountered them, as well as any key events that may have happened prior, in the title. Yours will almost certainly vary depending on how quickly or slowly you proceed through the story objectives, and probably your mission performance.
  
• Based on observations from numerous players, it seems that events that involve a "random" Knight that aren't filtering on other factors, often choose from the highest ranks. There is still definitely some randomness, but the pool it draws from may in fact be the highest ranked 4-6 knights.

Lastly, if anyone is smart enough to simply data mine all of this information, you'd be my hero. I have no idea how to even begin doing something like that. You would receive full credit, naturally.

Thank you for reading, and good hunting!

This was encountered shortly after a primary story mission, although it's unknown if that's the trigger. I had a different Knight activate each time I checked it. The first Knight for me was an Interceptor at level 8, nearly 9. The second was a Purgator who was at 6 going on 7. The options seem fairly straight forward, but it has a lengthy resolution. Choosing the Quest option sends the chosen Knight away for 45 days, and grants the High Morale status for your Knights for 20 days, giving them +1 WP on missions. There is a chance that the Knight may die. Mine did after 3 reloads. I suspect the RNG decides this at the time of selection. I do not know if this is more or less favorable than the Bloom option. If the Knight returns alive, they are promoted to the Paladin advanced class. Choosing the Bloom option also sends the chosen Knight away for 45 days, and grants +100% Resaerch Speed for 20 days. In my case, the Knight returned alive and had reduced the Corruption of a random Planet. Upon his return, he was still a Purgator.

All information in this section courtesy of bryan_cs_liew. Thanks! This entire event is apparently either bugged or extremely random, as they tried several of the options multiple times with different and conflicting results.

Event occurred at random. In order to trigger the choice you must travel to the planet indicated by the Inquisitor.

Screenshot courtesy of Lady Loranda. Thank you!
+1 Grimoire Immobilized (5 days)
5% Passive Resistance to all Knights (Permanent!)
This option occasionally would not award the resistance bonus despite what it said. Immobilized (10 days)
You get nothing.
-2 Corruption at Planet
Apparently discussion about this event says this may be a buggy option as well. From one report it was said that nothing happened, from another, more recent, it says there was -2 Corruption.

This event occurred while traveling between Planets. Lunete Perceptive (60 days), +100% Construction Speed
2 Random Knights Wounded
2 Random Knight Lightly Wounded
+2 Requisition -1 Hull Integrity
+2 Requisition
Thanks to Solanis for this information! Apparently a Death Guard ship is hiding inside it. Definitely not the space kinder egg you wanted! According to another user, Fetch, they took this option and did NOT suffer any damage with level 3 Guns and level 2 Voids. Like many of the other Open Fire equivalent options, there may or may not be some degree of variability to the outcome depending on your upgrades. Thanks to Baleygr for this information!
A new Death Guard cruiser appears on the map.

This occurred on day 221 at random. +3 Requisition Wargear added to armory.
I received a T2 Psilencer, although I had access to T3 equipment at the time. Ectar Zealous (45 days), +50% XP Growth Rate
Lunete Perceptive (45 days), +100% Construction Speed
Knights have High Morale (45 days), +1 Max WP

All information in this section courtesy of Pepe. Thanks!

Ectar Zealous (30 days), +50% XP Growth
Vakir Vexed (30 days), -50% Research Speed -2 Requisition
Knights High Morale (possibly 60 days), +1 Max WP Vakir Focused (20 days), +100% Research Speed
Ectar Indignant (20 days), -50% XP Growth Rate
Knights Low Morale, -1 Max WP

This event occurred when encountering a Death Guard ship. Enemy Cruiser Destroyed
+2 Requisition No opportunity to check. Information here thanks to Baleygr!
Void Shields Damaged - Offline
-1 Hull Integrity
+5 Tentarus Seeds
Enemy Cruiser Destroyed
+2 Requisition No opportunity to check.

This is a distinct event from the other Foul Spray encounter, with different dialogue. -1 Hull Integrity
Enemy Cruiser Destroyed
+2 Requisition -1 Hull Integrity
+5 Seeds
Enemy Cruiser Destroyed
+2 Requisition
I received Poxus Seeds, it may be random. 3 Knights Wounded
+2 Corruption on the Planet below
+5 Seeds
Enemy Cruiser Destroyed
+2 Requisition
The type of Seed is confirmed to be variable, thanks to officialron. No opportunity to check.

This event occurred when encountering a Death Guard ship. -1 Hull Integrity
Enemy Cruiser Retreats
Ironic that the event about a cloud of bugs has such an obvious bug of its own. Enemy Cruiser Destroyed
+2 Requisition
Thanks to Pepe for an updated screenshot for this! 4 Random Knights Wounded
Enemy Cruiser Destroyed
+2 Requisition Lunete Wounded (30 days), Construction cost +4 Servitors
Enemy Cruiser Destroyed
+2 Requisition Edict Retreats, Locks Navigation to the closest planet away from DG Vessel
-1 Requisition

Occurred while encountering a DG Ship above a planet with an active mission. -1 Hull Integrity
Augurium Damaged, Prognosticars Offline
Enemy Cruiser Retreats Enemy Cruiser Destroyed
+2 Requisition
Thanks to Diddums for this conditional info!
If guns are at or below the level of the enemy ship:
-1 Hull Integrity
Mission Failed on the planet below 3 random Knights Wounded
Enemy Cruiser Destroyed
+2 Requisition No opportunity to check.

This event occurred when encountering a Death Guard ship. -1 Hull Integrity
Ectar Wounded (60 days), Purity Seals cost +1 Seed
Enemy Cruiser Destroyed
+2 Requisition 3 Knights Lightly Wounded
2 pieces of Gear lost
Enemy Cruiser Destroyed
+2 Requisition 3 Knights Lightly Wounded
Vakir Wounded (45 days), Strategems locked
2 pieces of Gear lost
Enemy Cruiser Destroyed
+2 Requisition Thanks to officialron for this info and a screenshot!
Edict Retreats
2 pieces of Gear lost
-1 Requisition

This event occurred when encountering a Death Guard ship. Enemy Cruiser Destroyed
+2 Requisition -1 Hull Integrity
Enemy Cruiser Destroyed
+2 Requisition Void Shields Damaged, Edict takes +1 Damage
Enemy Cruiser Destroyed
+2 Requisition
It seems like there's a bug with the flavor text on this outcome. It says my Void shields are "Level 1" but I had the second level of research at the time it happened. If I had to guess, it probably interpreted my current hull integrity (4/5) instead of maximum as what my Void level is. User Ash reported even more severe results when they ACTUALLY had level 1 voids, and suffered additional damage to their Libris Malleus. Information and screenshot for this thanks to officialron!
Edict Retreats
-1 Requisition

Information in this section provided by DKATyler and officialron, with screenshots thanks to officialron, thank you both!
This event occurred when encountering a Death Guard ship. 2 Knights Critically Wounded
5 Knights Wounded
4 Knights Lightly Wounded
-5 Servitors
Enemy Cruiser Destroyed
+2 Requisition Enemy Cruiser Destroyed
+2 Requisition
Some new information from Diddums for this event outcome!
If encountered in a Warp Storm with greater gun and shield strength than opponent (and Gellar Field not upgraded):
-1 Hull Integrity
Guns Damaged and Offline
Enemy Cruiser Destroyed
+2 Requisition Warp-Drive Damaged, -20% Ship Speed
Lunete Wounded (45 days), Construction costs +4 Servitors
Enemy Cruiser Retreats

This event occurred when encountering a Death Guard ship. Enemy Cruiser Destroyed
+2 Requisition
Thanks to Eblingus for the following.
If Guns levels are equal between your ship and theirs:
-1 Hull
Augmentation Chamber Damaged (-4 Servitors, Servitor Production Offline)
Enemy Cruiser Destroyed
+2 Requisition
Damaged component may be random. Warp Drive Damaged, -20% Ship Speed
Enemy Cruiser Destroyed
+2 Requisition
In a case reported by VonBek, they also suffered -1 Hull and their Apothecarion was Damaged. They also had level 3 guns, but did not report the DG Ship gun level. It's possible if you aren't strong enough that this is the result. -2 Hull Integrity
3 Random Knights Wounded
Enemy Cruiser Destroyed
+2 Requisition
The flavor text for "You:..." does not reflect your choice or the follow-up text. Looks like a bug to me, but not a critical one.

This event occurred when encountering a Death Guard ship. Additional Information in this section provided by DKATyler, and screenshot thanks to Pepe, thanks!
-1 to 7 Servitors
Enemy Cruiser Destroyed
+2 Requisition
There may be some randomness to the number of servitors lost. -1 Hull Integrity
Enemy Cruiser Destroyed
+2 Requisition
Thanks to officialron for this update!
If level 3 guns vs 1:
Enemy Cruiser Destroyed
+2 Requisition Thanks to DKATyler for this information!
Librarian Knight Wounded
Augurium Damaged, Prognosticars Offline
Enemy Cruiser Destroyed
+2 Requisition Thanks to officialron for this info and screenshot!
Edict Retreats
-1 Requisition

Information in this section courtesy of Oximarr, with screenshots thanks to officialron!
Occurs while engaging a Death Guard cruiser. Enemy Cruiser Destroyed
+2 Requisition Information and screenshot for this result thanks to offiialron, with clarification thanks to Nikas Zekeval!
With upgraded Gellar Field:
Enemy Cruiser Destroyed
+2 Requisition
Additionally if Gellar Field NOT upgraded:
Ectar Wounded (45 days), +1 Seed cost for Purity Seals
3 Knights Wounded No opportunity to check.

This event occurred when encountering a Death Guard ship. Thanks to a friend for the information! -1 Hull Integrity
Gun Batteries Damaged, Guns Offline
Enemy Cruiser Destroyed
+2 Requisition 2 Random Knights Lightly Wounded
2 Random Knights Wounded
Enemy Cruiser Destroyed
+2 Requisition Exterminatus system Damaged
-4 Servitors
Enemy Cruiser Destroyed
GM Low Support (30 days), Armoury Locked Thanks to officialron for this info and a screenshot!
Edict Retreats
-1 Requisition

This event occurred when encountering a Death Guard ship. -1 Hull Integrity
4 Knights Wounded
Enemy Cruiser Destroyed
+2 Requisition Enemy Cruiser Destroyed
+2 Requisition No opportunity to check. Information and screenshot thanks to officialron!
Edict Retreats
-1 Requisition

This event occurred when encountering a Death Guard ship. -2 Hull Integrity
Enemy Cruiser Destroyed
+2 Requisition Apothecarion Damaged, -50% Wound Recovery Rate
Random Knight Critically Wounded
Enemy Cruiser Destroyed
+2 Requisition
User officialron reported that they suffered an additional Wounded Knight in their version of this event. 4 Random Seeds Destroyed
Enemy Cruiser Destroyed
+2 Requisition

Information and screenshots in this section thanks to officialron!
This event occurred when encountering a Death Guard ship. Enemy Cruiser Destroyed
+2 Requisition Enemy Cruiser Bypassed
Possibly related to the level of Engine upgrades, officialron was at 160% at the time of testing. Navigation Locked and you return to your origin system.
-1 Requisition

This event occurred at random while traveling. No matter what you choose, you suffer -3 Servitors. Thanks to Invictus for this information!
-6 Servitors
Augmentation Chamber Damaged, Servitor Production Offline Ship Immobilized (20 days)
Nothing else happened after this wait. Nothing else happens.
This is a suspiciously low key outcome considering everything else in the game. I've yet to see any long term repercussions to this choice. If anyone else has a different result, please let me know.

This occurred randomly while in transit. The Gun Batteries are damaged and put offline no matter what. 3 random Knights On Assignment (30 days) Thanks Zoneseek for this information!
Lunete On Assignment (5 days), Construction costs +4 Servitors
Lunete Wounded (30 days), Construction costs +4 Servitors -1 Hull Integrity
Gun batteries still damaged and offline.

Received after a GM Report and also after slaying a Reaper. Automatically receive GM High Support for 30 days granting +1 Requisition for Deeds. Also unlocks the Armoury if it was locked for some reason.
In every round of testing I received a piece of T3 equipment from the relevant category. On the surface this seems like a helpful event, but it's really kind of worthless. There's so many equipment categories that you're not likely to get something you want unless you're really hurting for ANY good equipment. Receive a random T3 melee weapon. Receive a random T3 ranged weapon. Receive a random suit of T3 armour. Knights High Morale (60 days), +1 Max WP

Occurred randomly after a particular story mission. Information here thanks to Kneggalicious!
Ectar On Assignment (30 days), Purity Seals cost +1 Seed 2 healthy Knights appearing highest on the roster on Assignment (30 days)
Unlike many similar outcomes, this one definitely takes the two knights who appear first on your roster who aren't wounded. Every time I tried it took the same two. Vakir Focused (30 days), +100% Research Speed
-2 Requisition

This section is thanks to a friend who is also playing the game. It is unknown when exactly this quest occurred but it was random.
May trigger after not taking any Deeds for a while on missions. Thanks Indrahim! After completing the chosen task, this reward was given.

GM High Support (30 days), +1 Requisition from Deeds

-2 Requisition Information in this section from ZenLOSER.
Receive a quest to take all Glorious Deeds for 60 days.
On successful completion, receive GM High Support for an unknown, possibly permanent, duration.

This event occurs randomly. Thanks to Invictus for this information!
50% of Seeds destroyed
GM High Support (30 days), Deeds give +1 Requisition GM Low Support (60 days), Armoury Locked All Seeds Destroyed
GM High Support (60 days), Deeds give +1 Requisition
Ectar Zealous (60 days), +50% XP Growth Rate
Information courtesy of neeleyalex and screenshot from BloodM3ss, thank you!

This occurred randomly while traveling.
According to fairly extensive testing by BloodM3ss this event may require you to have at least 7 Knights in your barracks. 1 Knight Promoted
2 Knights Lightly Wounded
Knights High Morale (30 days), +1 Max WP on Missions Vakir Focused (30 days), +100% Research Speed New Talent for a Knight
3 Knights Promoted
2 Knights Wounded
2 Knights Lightly Wounded
Knights High Morale (45 days), +1 Max WP on Missions
Ectar Zealous (45 days), +50% XP Growth Rate
Vakir Vexed (30 days), -50% Research Speed
There's a lot on this one, with a fairly minor cost. In my case the gained talent was Blademaster, which grants +5% CRIT for Melee Attacks. Unfortunately this was worthless since the Knight was a Purgator.

Thanks to jenjm5 and Revalator for this info!
Presumably this event follows either The Assembly - An Enemy Within, and/or Sabotage - An Enemy Within.

6 Knights On Mission (10 days) 2 Knights On Mission (long time) "The Ship Will Be At Great Risk"

This event occurred randomly while traveling. No matter what you do, any Construction Projects will stop, and you will be directed to a specific system for repairs. Ship Immobilized (10 days)
After the wait is over, construction on the previous project resumes immediately. Thanks to PotatoLord for the info!
-5 Servitors
Ship Immobilized (5 days) Thanks to VegladeX for this information and screenshot!
Construction Suspension Cancelled
-1 Hull Integrity
2 Ship Components Damaged The dialogue disappeared before I could screenshot it, but you are denied future docking rights and booted back to the map. You remain locked out of construction. Several days later, you receive a penalty for delaying too long and two ship components are damaged. After this, you can resume construction projects.
According to Whatsit Tooya, there may be a glitch with this route. They waited over 100 days and did NOT have their construction ever unlock. This would be effectively a game ender, or at least a major difficulty bump.

Occurred randomly while low on Servitors. In order to trigger any selections, you must travel to the planet indicated by the Dominus. Thanks to a total smeghead for this info and screenshot!
+5 Servitors +15 Servitors
Lose a Random(?) Storm Bolter
In my game, the one it took was equipped, but not of the highest tier I had available. I don't know what determines the surrendered gear. +15 Servitors
Random Edict component Damaged
-1 Hull Integrity

This event occurs after you reach the planet specified in Research Blocked - A Needed Grimoire. +1 Grimoire
4 Knights on Assignment (30 days)
Research Suspension Cancelled Research Project Cancelled
Research Suspension Cancelled +1 Grimoire
GM Low Support (30 days), Armoury Locked
Research Suspension Cancelled

All information in this section from Fear_ina_box. Thanks!
Happens at random during transit

Vakir wants a terminal repaired, and blames the Dominus for stalling on the repair, though the Dominus claims Vakir is physically abusing her acolytes, to which Vakir threatens far worse if she doesn't get what she wants.

Construction Project on hold for 10 days -4 Servitors Thanks to neeleyalex for this information!
Vakir Vexed (60 days), -50% Research Speed

This occurred randomly while having a Research Project in progress that uses Seeds. In my example the hololith highlighted a Red Seed even though I didn't have any, nor was I running a project that used them. Information thanks to Pickle.
Vakir Vexed (5 days), -50% Research Speed The dialogue option immediately disappeared after selecting this, but the Inquisitor praised the action and presumably 1 extra seed for the color of my research was used. The effect text after selection did not actually specify what was used or how much. Information thanks to Kallandras.
Vakir Injured (30 days), Strategems Locked

This occurred at random while a Research project was in progress. Research Suspended Indefinitely
Need to go to a specific system. Check "Negotiations - A Needed Grimoire" if you take this route. No opportunity to check. Thanks to Fear_ina_box for this information!
-3 Servitors
-1 Grimoire
Research Suspension Cancelled

Thanks to PotatoLord for this info and some screenshots.
This event seems to have occurred randomly Thanks to Trias. for this information!
Lose ALL Servitors (Trias. lost TWENTY FIVE servitors. ALL is most likely not a fluke.
Construction Locked (60 days) Vakir On Assignment (10 days), Strategems Locked Thanks to Dave and Taliesyn for this information!
-3 Requisition
Construction Suspended (10 days)
After about a week a Cult is found and incinerated. No known other long term effects.
Approximately 30 days after the initial selection, a mission is received for a new event, "The Assembly - An Enemy Within." See its entry for further. Thanks to Haveatya for this information, and Eblingus for clarifying the duration!
3 Knights On Assignment (10 days)
Cult discovered. No known other long term effects.

Information and screenshots in this section courtesy of Pepe. Thank you!
This occurred randomly while traveling. Information thanks to bryan_cs_liew.
Instantly completes research. No known negative effects.
According to BluePariah, this caused nothing to happen with the research "Domination of Kadex." For another user, Diddums, it also failed to complete the "Torpor" research, which was NOT story based. A third user, Eblingus, also had this issue. This may be more complicated than it appears, or was changed in an update after the original reporting user completed it. There is a possibility this leads to the "Servitors Corrupted - Seeds of Peril" event. Thanks to babkinov for this information!
Vakir Vexed (60 days), -50% Research Speed 2 Knights On Assignment
For Pepe these were their two highest ranked knights. It's unlikely it was random given the choice, but they were unable to investigate further.

All information in this section thanks to Diddums! They suspect that this event may have occurred because they chose the "Time" option in the previous Seeds of Peril event.

Immediate outcome: -5 Servitors

No opportunity to check. Research Suspended (10 days) No opportunity to check but flavor text indicated "some knights will be unavailable for some time."

Encountered while traveling to an Anomalous Planet in a Warp Storm during Days 150-200. In my case this was Ferrogar VII.
The flavor text claimed that the Edict was teleported to a different planet in the sector, but upon returning to the map the ship hadn't moved. The planet, however, was replaced by Ferrogar VI, and had no Corruption. As I do not have access to any other sectors at time of writing, I'm unable to verify if Ferrogar VII disappeared to the Florian system as the effect claims.

Thanks to Raziel of Nosgoth for this new information on this event! Great research on their part! I will copy paste their explanation below, as it's well written.

Seems to switch two planets on the Star Map. For me it was the left-most planet Hagan VII (4 corruption) for the right-most planet Fides VI (0 corruption).

If you put a Prognosticar on the planet before the switch is made the Prognosticar will remain in the same spot but the planets will still switch.
Any corruption reducing effects will stick to the planet: Hagan VII was reduced from 4 corruption to 2 corruption by attuning with a Prognosticar before the switch. Hagan VII remained at 2 corruption after the switch. However, the Prognosticar was still in the left-most spot (Hagan VII's original position), now occupied by Fides VI, still at it's original 0 corruption.

Same as Bypass
-1 Hull Integrity
Two random Knights are Wounded
Ectar Wounded (30 days), +1 Seed Cost for Purity Seals
Random Loot (I received T2 loot, it is not known if this varies by unlocked Requisition Tiers)
In my opinion, this is the most favorable option early on, assuming you are willing to suffer the wounds to your knights and the increased cost for Purity Seal Upgrades.
This will result in an Exterminatus on the world.
Edict Immobilized (10 days)
GM Low Support (30 days), Armoury Locked
In my opinion, this is the least favorable option.

This event occurred randomly when there was a large number of injured Knights. This information was referred by a friend. No opportunity to check. 1 Knight Killed
3 Knights Battle-Ready
Other Wounded Knights moved closer to Battle Readiness by 20-30 days.
Thanks Fear_ina_box for this information! Thanks to Ebilingus for this information!
Random Apothecary On Assignment (30 days)

Information and screenshots in this section thanks to Taliesyn!
This is a follow up to "Sabotage - An Enemy Within" depending on your choice there. Other choices may lead to a further questline. Look at other events including the title "An Enemy Within" for further. 3 Knights Wounded
Ectar Wounded (30 days), +1 Seed cost for Purity Seals Vakir Wounded (30 days), Strategems Locked and Research Paused -1 Hull Integrity
Augurium Damaged - Prognosticars Offline
-5 Servitors
Chance for a Knight to be Wounded Information in this section thanks to Diddums. Kudos to them for taking the the most realistic option for the Imperium and Inquisition compared to the rest of us. That poor commander also had an insane number of servitors on standby when they choose it (37!).
Construction Suspended (60 days), 0% Construction Speed
Lose ALL Servitors

Thanks to a friend for this information!
This event may occur at random. Knight Gains bonus stats
Knight Lightly Wounded
Knight Wounded Thanks to Diddums for this information!
Knights Low Morale (30 days), -1 Max WP First two knights in your roster unavailable for 60 days; knights get high morale for 30 days; all knights get +1 max WP
Thanks Solanis for this information! Pasted their results directly above here. Lacking further clarification, I would assume the +1 WP all Knights receive is related to the High Morale and NOT permanent.

Thanks to Eblingus for this information and screenshot!
This event occurred randomly while a knight is (critically?) wounded. No opportunity to check.
It seems pretty obvious, however. This is the Space Marine version of putting them out of their misery and there's no dreadnoughts in this game to inter the fallen. Knight remains wounded, but recovering
Resilience set to 1
Max HP -2 Thanks to Ash for this information!
With less than fully upgraded Apothecarion:
Knight died.
According to Ash they only had the first Apothecarion upgrade, "Surgical Unit." It's possible but unknown if higher levels of repairs would have improved the outcome. It is now CONFIRMED that a fully upgraded Apothecary will result in a positive outcome here. User Lady Loranda went with this option and provided a screenshot.
With upgraded Apothecarion:
Knight is Battle Ready
Knight gains +2 Resilience

Information and screenshots by BloodM3ss. Thanks again!
According to his data this event may need a world with at least 2 points of Corruption. Occurred while arriving at a planet. Thanks to Eblingus for this information!
Planet gains +5 Corruption 2 Knights Wounded
2 Knights Lightly Wounded Information courtesy of [UPV] Zenpei. Thanks!
Hive destroyed
Gun Battery Damaged - Guns Offline Thanks to Thanatos for this information!
GM Low Support (Until next report), Armoury Locked
At the report, received +2 Requisition as the GM Agreed with the course taken.

This event occurs randomly.

+2 Corruption on a random Planet Thanks to dv for finally getting to check this! I guess they fixed the bug with it.
4 Knights On Assignment (45 days)
After they get back: -2 Requisition
There appears to be a bug for this option. It says that it needs 4 Battle-Ready Knights, but I had 9 and it still was locked. Random Knight on Assignment (45 days)
After they get back: +1 Level and New random Talent
GM High Support (45 days), +1 Requisition for Deeds
Thanks to dv for some added information on this result!

Information in this section is thanks to Solanis, Dembo and Pepe!
Trigger: Possibly due to starting repair of warp drive (which sounds unrelated but was last action I took; might also be due to having a lot of servitors (40))

Vakir on assignment (10 days), Stratagems Locked Ectar Indignant (30 days), -50% XP Growth
Lunete Perceptive (30 days), +100% Construction Speed +1 Servitor
Current Construction Cancelled

Occurred randomly while traveling. Thanks Pepe for this information and screenshot!
Edict Immobilized (3 days)
-1 Hull Integrity Arrived instantly at my destination.
-1 Hull Integrity if Gellar Field not upgraded.
I had my Gellar Field fully upgraded at the time that I took this choice. There may be negative consequences if you do not.
Edit: Thanks to PotatoLord for risking his Edict for science! Added the conditional to this. Thanks to Pepe for this information!
Vakir Wounded (20 days), Strategems Locked No opportunity to check.

This occurred randomly while traveling between planets. Warp Drive Damaged, -20% Warp Speed
Thanks Dirkradix for this information! Edict moved to a random location.
-1 Hull Integrity Inquisitor Wounded (20 days), Strategems Locked
Augurium Damaged, Prognosticars Offline You continue unmolested.

All information and screenshots in this section thanks to BloodM3ss! Thank you! Active Research Completed!
Ectar Indignant (45 days), -50% Growth Rate Vakir Vexed (30 days), -50% Research Speed Ectar On Assignment (10 days), Purity Seals cost +1 Seed
Active Research Advanced 50%!

Occurred while traveling through a warp storm. Information here thanks to Lady Loranda!
-4 Servitors (possibly a random amount) Thanks to VegladeX for the no field outcome!
If Gellar Field repaired: Nothing happens.
If Not: -1 Servitor
Lunete Wounded (20 days) - +4 Servitor Costs No opportunity to check.

Information in this section thanks to Ash and Diddums!
Occurs while passing through a warp storm.

No opportunity to check, but at least losing 4 seeds according to the description. If Gellar Field repaired
No effect.
If not:
1 Seed Destroyed
Vakir Wounded (20 days) - Strategems Locked Edict Retreats, navigation locked and you return to previous system.

Information in this section courtesy of Pepe! It was their second report. If I remember correctly it was an early one for me as well, prior to me starting the guide. There isn't a screenshot of the choices and dialogue but if I remember correctly the GM was unconvinced of the severity of the Plague, and you had an option to send him a Seed or try to convince him other ways.

Additional information provided by Sral93, helping to round out the options and outcomes. Thank you both!

Screenshot courtesy of Lady Loranda. Thank you!
Knights +50% XP Knights -50% XP -1 Seed
Vakir Vexed (45 days), -50% Research Speed
On day 151 you will receive the Option 2 report.
Screenshot and information thanks to Pepe! Thanks to Siven for this information!
Random un-Wounded Apothecary On Assignment (45 days)

Information here provided by BloodM3ss. Thank you!
If previous report had information sent by an Apothecary, +2 Requisition and a selection below. See option 2 if you sent a Seed.
According to BloodM3ss it may be randomly chosen between this and Option 2, regardless of your previous choice. Missions Reward Grimoires until next report. Missions Reward Servitors until next report. Missions Reward Requisition until next report. Missions Reward Knights until next report.

Thanks to Pepe and BloodM3ss for this information!
If you choose to send a Seed after the previous report, this is the outcome. The GM is much less impressed.
According to BloodM3ss it may be randomly chosen between this and Option 2, regardless of your previous choice. -1 Requisition
User Eveoholic had the exact opposite outcome for this choice in this event, and received +1 Requisition. It's not immediately clear what caused the difference. Vakir Vexed (45 days), -50% Research Speed
Lunete Perplexed (45 days), -50% Construction Speed
+10 Servitors
A rare bait and switch. At first you think Lunete is going to get a bonus, but then the GM just craps all over everything as he often does. -1 Requisition
Ectar Zealous (45 days), +50% XP Growth

This report was made on day 211, some time after completing the story mission at Usa'rya. Your exact timing may vary as far as the day, but I suspect it will always happen immediately following Usa'rya. Inquisitor Vexed (60 days), -50% Research Speed.
GM High Support (60 days), +1 Requisition from Deeds (not pictured) Inquisitor Focused (60 days), +100% Research Speed Low Support (60 days), Armoury Locked

This appears to be an alternative GM Report. It would appear there is some randomness in how it decides which report to make. The only difference in this report appearing vs the other one, is which selection I made on the Paladin's Quest event. This report may also follow the other "After Usa'rya" report, according to Indrahim. I have confirmed myself that it can follow it.

Default: +2 Requisition

Inquisitor Vexed (60 days), -50% Research Speed
Ectar Zealous (30 days), +100% XP Growth Rate

Unusually, the dialogue window immediately closed after the conversation and I did not have an opportunity to screenshot it.

Inquisitor Focused, +100% Research Speed
Ectar Indignant, -50% XP Growth Rate
Thanks to Rieffen for this information! Inquisitor Vexed, -50% Research Speed
Ectar Indignant, -50% XP Growth Rate
Lunete Perceptive, +100% Construction Speed
Thanks to S4R1N, Indrahim and alsoalpharius for this information! -1 Prognosticar (see note below)
+50% Research Speed (Permanent)
Inquisitor Focused (60 days), +100% Research Speed

Update: Apologies to Invictus for having to discover this. I apologize for the oversight here, but it would appear that taking the Prognosticar option DOES HAVE A COST. If you don't have any sitting idle, then it removes an ACTIVE Prognosticar from your map. USE THIS OPTION WITH CAUTION.
I had the opportunity to verify this choice myself. As of Update IV the bug appears to still be active and you can choose the Prognosticar option despite not having any available, and seemingly without penalty.
Thanks to Video Games? for this information. There appears to be a possible glitch with this option in that it does not require any available Prognosticars nor does it subtract one, so it may be free. If so this is a clear, standout choice.

I'd assume this version of the report triggered because I had unused equipment stacking up. Two Random Weapons returned.
Ectar On Assignment (15 days), Purity Seals cost +1 Seed 3 Highest Ranking Knights on Assignment (60 days)
Ouch. There is no benefit to this outcome, aside from simply not having the downsides of the other two. I waited the 60 days to see if the returned Knights would have any new talents and they had nothing to show for their time away. -2 Requisition
Quest: Destroy a Reaper in 60 days

Not sure what might trigger this one. -2 Grimoires
Vakir Vexed (45 days), -50% Research Speed
Low Support Cancelled (If you had it) Thanks to ZenLOSER for this info and screenshot!
-15 Servitors
Lunete Perplexed (45 days), -50% Construction Speed
GM Low Support Cancelled I don't know what the pre-requisites for this are. All 10 of my Knights were in battle-ready condition at the time of briefing. Fortunately, VegladeX was able to check this one out for us.
4 Knights On Assignment (90 days)
GM Low Support Cancelled +5 Servitors
GM Low Support (60 days), Armoury Locked

I assume I received this version of things by not advancing the main story missions. I've been busy doing other research.
According to Asurea, they received this report on day 511, AFTER killing their 2nd Reaper. It seems this may appear somewhat at random. Vakir Vexed (45 days), -50% Research Speed
Understandably vexed. Ectar Indignant (60 days), -50% XP Growth
Jeez, spare Vakir some unfounded accusations and not a peep. GM Low Support (60 days), Armoury Locked

My report on day 511. No known specific cause for this. Immediately your Prognosticars are placed inactive for 90 DAYS. Very unfortunate. Quest: Crusade (60 days), Must complete all Glorious Deeds, Rewards and Penalties Doubled 4 random Knights On Assignment (60 days)
+4 Requisition
GM Low Support Cancelled (If present)
Ectar Indignant (60 days), -50% XP Growth
Beats me why Ectar is upset. He makes no comments about the matter. I confirmed after the briefing that the effect was present. Vakir On Assignment (45 days), Strategems Locked and Research Suspended +2 Requisition
GM eats crow. Very satisfying.

Appears to be a direct followup to the previous report. Receive 2 random Knights Receive a single T3 piece of equipment.
The screenshot shows the SAME piece of equipment there times, but this is a glitch. I assume they intended for there to be 3 separate armaments but unfortunately it is not. Purity seals cost 1 less seed (minimum 1), PERMANENT
This seems the most helpful if you're actually in good shape at this point in the campaign, especially since certain seed sources will be drying up as you kill Reapers.