u start mw2 with an spoofed xuid, join game, when your ingame start esp.
the problem is now u will get banned after the match, but no problem. reconnect internet=get new ip, alteriwnet ban evader->start mw2 again with spoofed xuid. join game, start esp. thats a method to use the hack. u just have to play with spoofed xuid and reconect after each game.