Beat 'Chapter 13 - Locomotion' in less than 7 minutes

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

Defeat 10 Enemies in a row with Hand-to-Hand Combat

Kill 50 Enemies by Melee-Attacking from Behind

Finish the Game on Hard Without Changing the Difficulty

Finish the Game on Crushing Without Changing the Difficulty

Kill 50 Enemies with the SAS-12

Find 80 treasures

Kill 50 Enemies with the Dragon Sniper

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 100 Enemies with Headshots

Kill 30 Enemies with the Wes-44

Kill 50 Enemies with the 92FS-9mm