About 1 week after caving into the Halo 3 crave, I've finally played a match with my friends. I did okay at best, but that is excusable considering I've barely played Halo 3 multiplayer and we were playing on custom maps. And who cares about how well we play? It's all fun, right? Anyway, my little group of gamer friends has resolved to beat the campaign on Legendary with co-op, and it's going okay so far, and I hope to see how fun turn out.
Current Co-op Legendary Campaign Level: I don't remember what it's called, but it is the one after T-something Highway.