Defeat 10 Enemies in a row with Hand-to-Hand Combat

Kill 30 Enemies with the M9

Find 20 Treasures

Kill 5 Enemies in a Row with Headshots

Kill 20 Enemies with Gunfire While Hanging

Defeat 50 Enemies with Hand-to-Hand Combat

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

Defeat 20 Enemies with Hand-to-Hand Combat

Finish the Game on Easy Without Changing the Difficulty

Kill 50 Enemies with the Dragon Sniper

Find 20 Treasures

Kill 5 Enemies in a Row with Headshots

Kill 50 Enemies with the M4