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 30 Enemies with the T-Bolt Sniper

Kill 30 Enemies with the M9

Find 80 Treasures

Kill 20 Enemies with Gunfire While Hanging

Defeat 10 Enemies with Thrown-Back Grenades

Find 60 Treasures

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

Kill 10 Enemies with Grenades While Hanging

Kill 30 Enemies with the G-MAL