Kill 20 Enemies with Gunfire While Hanging

Kill 20 Enemies with the Pistole

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 50 Enemies with the FAL

Kill 20 Enemies with Headshots

Find 1 Treasure

Finish the Game on Normal Without Changing the Difficulty

Defeat 250 Enemies with Headshots

Find 30 Treasures

Kill 50 Enemies with the M4

Find 20 Treasures

Kill 100 Enemies with Headshots