Kill Switch – XBox

Kill Switch - Platform: XBox

Infinite Ammo: 
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Pause the game and press Left Trigger, Right Trigger, X, X. 
When done correctly you'll hear a sound. 

Invulnerability:
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Pause the game and push X,X,Y,Left trigger, right trigger, A,A. 
You should then hear a guys voice say give it to em soldier.