Kill 20 Enemies with the Desert - 5

Activate a Tweak

Finish the Game on Crushing Without Changing the Difficulty

Finish the Game on Normal Without Changing the Difficulty

Kill 30 Enemies with the MP40

Kill 3 Enemies with 1 Explosion

Kill 20 Enemies by Shooting from the Hip (without aiming)

Kill 30 Enemies with the Dragon Sniper

Defeat 250 Enemies with Headshots

Kill 30 Enemies with the M79

Find the Strange Relic

Kill 20 Enemies with Brutal Combo

Kill 50 Enemies with the AK-47