OK, first things first, you have to be host! Try this in a private match with a friend.

Step 1: pull out your smoke grenade.

Step 2: shoot your smoke grenade straight at the ground and as soon as it blows up unplug your internet cord/wire-less from the back of your Xbox or even the front when doing this glitch and put it back in really fast.

If done correctly when you get back up from that smoke blast, you should be invisible!

But not to the bots because they're insane... lol no they just got auto-aim and stuff like that.

[unconfirmed]