Finish the Game on Crushing Without Changing the Difficulty

Find all Treasures and the Strange Relic

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

Find 40 Treasures

Kill 50 Enemies with the M4

Kill 20 Enemies with the Wes - 44

Kill 20 Enemies with Gunfire While Hanging

Defeat an alternate version

Eliminate 30 enemies in the air

Kill 30 Enemies with the M79

Find the Strange Relic

Kill 30 Enemies with Mk-NDI Grenades