It happened a while back that some challenges would complete while others wouldn't and magically people got gold or diamond camo. --- "Cover your receptors Perceptor." Driver picks the music. Shotgun shuts his cakehole.
Its been fixed since then and even if you did you'd have to be online to do it because you need to finish a challenge for the glitch to activate. --- "So... are you satisfied now?", Zelkova______________Gamestop Manager