I've been playing Total War since Rome, but I have never played the multiplayer, due to the fact that I really only enjoy multiplayer with friends and most of my friends that do game are console gamers. But, I finally have a buddy who is getting Shogun 2 upon release.
I know next to nothing about how co-op campaigns work, could anyone provide me with a short primer or anything of the sort? I'd appreciate it.
edit: whoops, meant "cooperative" in the topic title.