Collect all trophies
Complete game on ÜBER
Complete game on I AM DEATH INCARNATE! (or ÜBER)
Solve the fourth Enigma code
Solve the third Enigma code
Solve the second Enigma code
Complete game on any difficulty
Collect all gold items
Collect all letters
Unlock demolition perk 5
Unlock demolition perk 7
Unlock demolition perk 6
Unlock assault perk 7
Unlock tactical perk 5
Collect 25 gold items
Unlock tactical perk 8
Unlock assault perk 8
Unlock assault perk 6
Unlock tactical perk 7
Unlock demolition perk 4
Solve the first Enigma code
Unlock tactical perk 6
Unlock stealth perk 4
Unlock stealth perk 3
Unlock assault perk 5
Unlock stealth perk 8
Unlock stealth perk 6
Unlock stealth perk 5
Unlock assault perk 4
Unlock tactical perk 3
Unlock stealth perk 7
Unlock stealth perk 2
Unlock stealth perk 1
Unlock demolition perk 3
Unlock tactical perk 2
Unlock tactical perk 4
Unlock assault perk 3
Unlock assault perk 2
Unlock assault perk 1
Unlock tactical perk 1
Unlock demolition perk 8
Unlock demolition perk 2
Unlock demolition perk 1
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