Defeat 50 enemies with the 92FS - 9mm

Defeat 20 enemies with gunfire by aiming while hanging

Defeat 50 enemies with hand-to-hand combat

Defeat 20 enemies with headshots

Defeat 20 enemies with hand-to-hand combat

Platinum

Kill 50 enemies with the Moss - 12

Kill 20 enemies with the Wes - 44

Kill 10 enemies with grenades by aiming while hanging from a ledge

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 melee-attacking from behind

Finish the game in Hard Mode