In order to get this achievement, you need to complete the impossible mode, which is unlocked after beating the game once.
I’ll let you know the tactic I used (Especially useful if you are starting the game).
Start a new game on Hard difficulty, this will let you experience the game as a true survivor horror experience.
Do not check achievements on this playthrough. You can us the following cheat codes in order to make your life easier:
NOTE 1: You need to input them on the pause menu.
NOTE 2: These Cheat codes DO NOT dissable achievements.




= +1,000 credits (One time only per play through)





= +10,000 credits (One time only per play through)





= +2 Nodes (One time only per play through)





= +2,000 credits (One time only per play through)












= +5 Nodes (One time only per play through)






= +5,000 credits (One time only per play through)





= Refill you Oxygen (Unlimited use)





= Refill your Stasis and Kinkiness energy (Unlimited use)
Once you finish the game start a New Game+, one of the advantages of doing is the fact you will carry all your money / upgrades from the latest playthrough.
Once you reach first the store buy the recently unlocked Military Suite (Level 6) which will make your life easier as well.
From this point on, check the achievement list for the game (Including the hidden achievements) and make sure to unlock almost all of them except for the following:
Once you reach chapter 11 after the death of a certain character, save your game and follow these steps in order to get a lot of credits:
This would be necessary if at this point you have not unlocked the following achievement:
After this save your game again.
Now the following steps were done by me on April 2022 using an Xbox One X and they worked 100%
Finish chapter 11 and DO NOT SAVE, then complete chapter 12 WITHOUT SAVING as well, when the credits start rolling click on

until they disappear and DO NOT SAVE.
Now back at the main menu start a New Game and select the Impossible difficulty
If done correctly you will start the game with the security suit, which will make this final playthrough easier.
Also make sure to not use any other weapon besides the plasma cutter so you can get the final 2 achievements at the ends of this playthrough: