By following my All Collectibles guide you will following achievements:

Diligent Reader - Collected all files
Locksmith - Opened all lockers
All in the Family - Collected all of the Mysterious Objects
Chatting With Kidman - Talked to Kidman about all of the photographic slides
Echoes Within STEM - Observed all Residual Memories
Caffeine Addict - Used every Coffee Maker at least once
Backup Ain't Coming - Completed the "Rogue Signal" side mission.
Sykes Out - Completed the "The Last Step" side mission.
Finally Free - Experienced every traumatic encounter and made peace with your inner demons.

I will show you location of all standard weapons except Magnum which you get for completing the game. So for Powerhouse achievement you have to play it again on New Game+.

On top of that I will also show you location of all High-Grade Weapon Parts and Red Get witch you need for They Never Even Stood A Chance and Stick it in My Veins achievements.

No collectibles.