Kill 30 Enemies with the KAL-7

Kill 30 Enemies with the G-MAL

Successfully Counter all of a Brute's Damage-Giving Attacks

Find 20 Treasures

Find 1 Treasure

Finish the Game on Easy Without Changing the Difficulty

Kill 30 Enemies with the Desert-5

Kill 50 Enemies with the M4

Kill 100 Enemies with Headshots

Kill 20 Enemies with Gunfire While Hanging

Kill 5 Enemies in a Row with Headshots

Defeat 50 Enemies with Hand-to-Hand Combat

Defeat 20 Enemies with Hand-to-Hand Combat