Kill 30 enemies with the MP40

Find 50 treasures

Kill 50 enemies in a row without dying

Find 40 treasures

Find 30 treasures

Kill 10 enemies by aiming while hanging from a ledge

Find 25 treasures

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

Kill three enemies with one explosion

Kill five enemies in a row with a brutal combo

Kill 30 enemies with headshots

Kill 20 enemies with a brutal combo

Kill five enemies with a brutal combo