Okay...umm I want to know how because the hack I was infected with worked on split-screen too. Which is really fun when you and a couple people do quick scopes. And they don't really say anything about modded private lobbies because they don't infect the ranked lobbies. I would know, because when the game first came out i had every hack(besides prestige hack because that's for gay boys! hehe:p) And I never once got a message from Activision. And why so against it? It's for entertainment purposes only. All in private match, so what's the big deal? THERE ISN'T ONE!