I was playing zombies on Die Rise in Black Ops 2 on round 32. me and my friend were on the roof. I was running laps and he was camping in the back with a trampo-steam in front of the window. I started to lag a little bit, bu this happened all the time since my connection is not the greatest. but then my screen went black, I was taken back to the main zombies menu, and a message popped up that said "NO FREE FAKE ENEMIES" what does this mean? and why did this happen?