Kill five enemies in a row with a brutal combo

Finish the game in Easy Mode

Kill 50 enemies with the M4

Kill 30 enemies with the Dragon Sniper

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

Find 30 treasures

Find 20 treasures

Kill 20 enemies with the Wes - 44

Kill three enemies with one explosion

Find 15 treasures

Kill 30 enemies with headshots

Kill 50 enemies in a row without dying

Find 10 treasures