Complete one Cooperative Multiplayer game

Finish the game in Normal Mode

Defeat 20 enemies by shooting from the hip (without aiming with L1/R1)

Defeat 30 enemies with the M9

Defeat 30 enemies with the Arm Micro

Find 20 treasures

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

Successfully counter all of a Brute’s damage-giving attacks

Make five enemies drop their grenade by shooting them

Defeat 20 enemies with headshots

Find one treasure

Received all 4 weapon efficiency ribbons