Kill 50 enemies with the M4

Find 40 treasures

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

Kill 50 enemies with the Moss - 12

Kill 30 enemies with the Dragon Sniper

Kill 20 enemies with the Desert - 5

Kill five enemies in a row with a brutal combo

Find 20 treasures

Kill 50 enemies in a row without dying

Kill 100 enemies with headshots

Find the Strange Relic

Kill 50 enemies with the PM - 9mm