Finish the Game on Normal Without Changing the Difficulty

Kill 20 Enemies with Gunfire While Hanging

Kill 50 Enemies with the M4

Kill 100 Enemies with Headshots

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 20 Enemies with Headshots

Find 1 Treasure

Finish the Game on Easy Without Changing the Difficulty

Kill 50 Enemies with the M4

Kill 30 Enemies with the MP40

Find 20 Treasures

Kill 100 Enemies with Headshots

Kill 50 Enemies with the AK-47