Defeat 30 enemies with Mk-NDI grenades

Defeat 70 enemies with the M4

Defeat 50 enemies with the 92FS - 9mm

Find ten treasures

Defeat 20 enemies with headshots

Defeat 20 enemies with hand-to-hand combat

From the gassed state, Submit an opponent in any mode.

Finish the game on at least easy difficulty.

Complete Act III.

Kill 250 People using pistols (ranked play counts).

Finish one side quest.

On chapter IV, playing as Ray, kill sharpshooters without Thomas' help.

On chapter III, kill 20 armed enemies while riding the stagecoach.