To use this cheat, you must have your melee ability as your A button. When using the shotgun, after firing, simply hit the melee button and continue to shoot. With the melee, you will cancel out the shotgun's reload and will be able to fire twice as fast as any other person whom is using the shotgun.

Go to the promotional code section and type in:

Drone4SP

When you do you unlock the ability to be a drone in the game

NewASE11 : gives you a new ase

SuitMP13 : gives you a secret agent multi player suit