Originally posted by Cyber
It's mentioned that a backup'ed game can play online without the need for a patch but I guess you can't play with others on a different patch. Should make bypassing MW2 much easier.
Well if shit loads of people end up playing backups, I suppose that if no one ever has the original disc to obtain the patch, they could always play online without it, and since there would be many people doing it, it wouldn't be entirely impossible to play online.