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 a single punch, after softening them up with gunfire

Kill 20 enemies with the Wes - 44

Kill 50 enemies with the Micro - 9mm

Kill three enemies with one explosion

Kill 20 enemies with a brutal combo

Defeat 20 enemies by blind-firing while in cover (without aiming with L1/R1)

Defeat 100 enemies with headshots

Complete one Cooperative Multiplayer game

Defeat 30 enemies with the Mk-NDI

Play in the swimming pool on the Cruise Ship