Is this game worth having if I only want to play the campaign? Another question, does it have splitscreen so I can play the co-op, or is it just online? I'm not adverse to playing the multiplayer mode, but I don't have live, and want it on 360, not PS3; even if I had Xbox Live, I don't have friends on the system to play it with, and on PS3, while I do have friends on the PS3, I've never played MP with one since most of us are perfectly content with our single player experiences, and some just don't play all that much; not that we wouldn't play if I had asked, but I just never cared. When it comes to multiplayer, if I ever play, it's always either me trying it myself, though rarely, or it's when I play with my brothers, one with me in person, and another elsewhere. So, is it good enough for the campaign alone? Thank you. Happy holidays, and the world is ending tomorrow!