Collect all trophies
Solve the fourth Enigma code
Complete game on any difficulty
Complete game on ÜBER
Complete game on I AM DEATH INCARNATE! (or ÜBER)
Collect all gold items
Release friend
Collect all letters
Defeat the London Monitor
Solve the third Enigma code
Unlock demolition perk 5
Locate the underwater stash
Unlock tactical perk 5
Unlock assault perk 5
Unlock assault perk 7
Unlock assault perk 8
Collect 25 gold items
Solve the second Enigma code
Unlock stealth perk 4
Unlock stealth perk 6
Unlock tactical perk 8
Unlock assault perk 6
Find the Laserkraftwerk
Unlock demolition perk 8
Unlock tactical perk 7
Unlock stealth perk 5
Choose to save Fergus
Solve the first Enigma code
Locate the resistance
Unlock stealth perk 8
Unlock demolition perk 4
Unlock stealth perk 3
Choose to save Wyatt
Unlock assault perk 4
Unlock tactical perk 3
Unlock stealth perk 7
Unlock stealth perk 2
Unlock demolition perk 3
Unlock stealth perk 1
Unlock tactical perk 6
Unlock demolition perk 7
Unlock demolition perk 2
Unlock demolition perk 6
Unlock tactical perk 2
Unlock tactical perk 4
Unlock tactical perk 1
Unlock demolition perk 1
Unlock assault perk 3
Unlock assault perk 2
Unlock assault perk 1
Save allied planes