Unlock demolition perk 1

Unlock stealth perk 1

Kill 20 Enemies with Gunfire While Hanging

Kill 100 Enemies with Headshots

Defeat 20 Enemies by Blind-Firing While in Cover (without aiming)

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 75 Enemies in a Row Without Dying

Kill 20 Enemies with Headshots

Find 1 Treasure

Finish the Game on Easy Without Changing the Difficulty

Kill 50 Enemies with the M4

Kill 50 Enemies with the 92FS-9mm

Kill 5 Enemies in a Row with Headshots