I don't want to derail the thread, but I'm a new member ( can't create a thread for 24 hours) and I was hoping to have a quick question answered. I'm a big fan of halo and played halo 3 a bunch with my roommate in college, I just got my own 360 and wanted to start playing again. I'd like to do the beta so I'm getting ODST, but I'd still like to play halo 3 with my old roommate. Can I play halo 3 multiplayer with him if I only have the ODST discs and he only has halo 3, or do i have to buy halo 3 as well?
prememtive thanks and apologies for the incongruous post.