10 Headshots in a row

20 Head or Heart-shots in a row

Complete Training Sim in under 3 minutes

50 Crotch-Shots

25 Leg-Shots

All kills are either Head or Heart Shots

10 Heart-shots in a row

Kill 200 enemies

Kill 500 enemies

Juggle the gun from one hand to the other

100 headshots

200 headshots

50 kills from grenade

Complete Arcade Mode

Complete Simulation Mode

Shoot and kill all enemies fast roping from all the helicopters

Kill all enemies without using the sniper rifle

Throw back a grenade and kill an enemy in the rooftop

Shoot and kill the boss helicopter

10 head shots

Get 4 kills without missing a shot

Kill all enemies using the assault rifle

Destroy an enemy vehicle

Kill 5 enemies without missing

Throw back a grenade and kill an enemy in the garage

Unlock all the weapons

Kill 3 enemies with 1 grenade

Kill the Boss, while taking no damage from his Minigun

Kill 5 enemies with headshots

Kill all enemies with Semi-Auto weapon only