Finish the Game on Crushing Without Changing the Difficulty

Find all Treasures and the Strange Relic

Kill 30 Enemies with the Tau Sniper

Kill 30 Enemies with the M9

Kill 100 Enemies with Headshots

Kill 30 Enemies with the Arm Micro

Kill 30 Enemies with the KAL-7

Kill 20 Enemies with Gunfire While Hanging

Find 60 Treasures

Kill 30 Enemies with the G-MAL

Defeat 50 Enemies with Hand-to-Hand Combat

Defeat 20 Enemies by Blind-Firing While in Cover (without aiming)