Ok so this is not really a glitch or anything and I have no idea how its done.
Anyways this is me playing Black ops and all of sudden my game turned to chrome.
This only happened to me as friends who joined and were playing with me in the same lobby did not get this. Now here is a video of what it looked like, if anyone knows how this happened please post so you inform us all

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Sorry for the shaking of the camera I was trying to play at the same time