Kill 20 Enemies with the Pistole

Kill 30 Enemies with the RPG-7

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

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Kill 30 Enemies with the Wes-44

Activate a Tweak

Finish the Game on Easy Without Changing the Difficulty

Finish the Game on Crushing Without Changing the Difficulty

Find 100 Treasures

Find 80 treasures

Find 60 Treasures

Kill 100 Enemies with Headshots