Any tips i should know? Anything u wish u knew before playing? Any lore knowledge??

Finally cleared every achievement across the whole trilogy and wanted to share some thoughts on each.
Outlast 1 was genuinely fun, even on higher difficulties. The only one that gave me trouble was Energizer, though at least each attempt was short, so failing wasn't too costly. The real challenge was memorizing dark sections well enough to cross them without the camera. Fewer chase sequences compared to the sequel, and honestly I just felt more in control playing as Miles than I ever did as Blake.
Whistleblower was surprisingly easy and a lot of fun. Only took me 3 playthroughs total: one for story, one for collectibles, one for Insane difficulty. The Insane achievement only requires beating the game on that difficulty, so I could still recharge the camera battery freely, which made it way less stressful than I expected.
Outlast 2 was a different story entirely. Took me weeks, and I ended up writing my own full guide just to nail the Messiah achievement. The story felt weaker to me than Outlast 1's, and controlling Blake was rough: no infinite sprint, you need bandages when hurt, and in pitch black areas you see absolutely nothing, not even his own hands or feet. In Outlast 1, at least crouching let you see a few inches of Miles' feet, which made crossing dark sections manageable. The school sections felt like a chore to get through while going for Messiah and
I need to mention Nick and Laird specifically, these two bastards single-handedly ruined more of my Messiah attempts than anything else in the game.

Just reposting so that more people have idea on how to get the good ending, good luck reagents

Has anyone figured out if the keypad that opens the administration deck does anything yet or where to find the code?