I don't think there is any way to play against the computer in any place but campainge. I really wish there was, like in Halo Wars.
Full Hayabusa and Campaing on Legendary Solo...yeah....I'm that good.....at Halo 3....
Scourge285 @ Hotmail.com
I won't be on alot, so feel lucky when I am on, peace and see ya later.
GT: Major Scourge