I don't see how this is going to help with the DMZ mode in MW2, glitching into buildings or shooting through walls or even bots walking through closed doors or one shot snipers at 900m away these are just a few examples of how broken DMZ is full of hacks and cheats gun duplicates, aimbot, koshei glitching, and not to mention tracer unless you blow up every vehicle in the lobby there is no way to avoid that one!!
