Defeat 20 Enemies While Swimming

Hit 3 Enemies with Fish in the Market

Kill 30 Enemies with the Mag 5

Kill 10 Enemies in a Row, Alternating Hand-to-Hand Combat and Gunfire

Find the Strange Relic

Finish the Game on Normal Without Changing the Difficulty

Finish the Game on Crushing Without Changing the Difficulty

Kill 30 Enemies with the Tau Sniper

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

Die from a trap.

Stay in the black market for 1 minute.

Kill 100 Enemies with Headshots