Easy 100% achievement

They can't be miss.
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Escape!
Escape the Taken to the motel Rewrite
Rewrite reality for the first time. Cool It
Make sure Dr. Meadows can take another look at the skies. Happy Ending
Rewrite reality for the last time.

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Follow this beautifull guide:
https://steamcommunity.com/sharedfiles/filedetails/?id=663566122
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Enter the Nightmare
Unlock all of the Nightmare Arcade Mode levels. This one is the hardest.
For this you will be on your own. You need at least 45k point to have three star.
Try to avoid to up your multiplier and kill them all. Be carefull of the grenadier.
you need 24 star to unlock everything

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All the next achievement are easily done in the arcade level Oil Field in Nightmare. There is a mignificent safe spot. Glorious Dawn
Survive until dawn in any Arcade Mode level. Skill Beats Gun
Survive an Arcade level using nothing but the flashlight and handheld flares

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For the next two you will need some amo to make a grenadier pop so he can kill his friend and you get the points.
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Survivor
Get 70,000 points in any Nightmare Arcade level. Poetry in Motion
Get a six-minute survivor streak and over 100,000 points in an Arcade level.

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Oil Field safe spot

1: Go to the middle of the arena, look right and go behind the house (left side).
2: Climb the rock and enjoy
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Pile 'Em High
Defeat 2,000 Taken.

Do this last because it will change depending on how you have play the story mode and the arcade mode.
Go in Act 2 chapter 1 till the mine with the spider. Kill the spider and reload the last checkpoint just after you kill the pack at the entrance of the mine.
Do it till the achievement pop.

Split Splat!
Take out two Splitter spawns with a single shot.

I have done this one during the story. If I remember well it was act 2 chapter 1 the first time you encounter the guy that split when light up. Just light him till he can't divide and try to shoitgun 2 of them at the same time.

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