Kill 20 Enemies with Gunfire While Hanging

Kill 5 Enemies in a Row with Headshots

Kill 75 Enemies in a Row Without Dying

Find the Strange Relic

Defeat 20 Enemies with Hand-to-Hand Combat

Finish the Game on Brutal Without Changing the Difficulty

Kill 3 Enemies with 1 Explosion 5 Times

Kill 10 Enemies with Grenades While Hanging

Finish the Game on Crushing Without Changing the Difficulty

Kill 75 Enemies in a Row Without Dying

Kill 20 Enemies with the Wes - 44

Kill 30 Enemies with the M79

Find 60 Treasures