Kill five enemies with a brutal combo

Finish the game in Easy Mode

Kill 50 enemies with the M4

Kill 50 enemies in a row without dying

Kill 20 enemies by shooting from the hip (without aiming with the L1 button)

Kill five enemies in a row with headshots

Find 35 treasures

Find 25 treasures

Find 20 treasures

Kill 50 enemies with the AK-47

Kill 30 enemies with headshots

Kill 10 enemies with headshots

Find five treasures