I'm trying to get my roommate into this game, so lately he's been playing campaign on his profile (same PS3). Today, he tried to get into campaign and after it's all loaded, he hits the X button only to get a black screen. Not only the game freezes, but the console also freezes. He tries it again and again, but the same results occur. However, I switch into my profile and I'm able to resume my own campaign without any problems whatsoever. Has anyone come across this issue before?