Complete the story
Get all the documents
Get all the collectibles
Check out all the computer documents
Complete chapter 1
Complete chapter 2
Complete chapter 3
Complete chapter 4
Complete chapter 5
Complete chapter 6
Complete chapter 7
Complete chapter 8
Get half of the documents
Get half of the collectibles
Escape 3 times from an enemy
Use 5 hiding places
Close 5 doors
Walk about crouching 100 yards
Get a document
Get a collectible
Escape from an enemy once.
Successfully complete the panic mini-game once
Fail the panic mini-game once
Use a duct
Use a hiding place
Close a door
Make Irene remind you about the mission once