If you aren't already at war with the CSA then consider taking Mexico first to use as a staging area and spread the Americans out. Airpower is probably going to be your greatest asset, I don't think the CSA ai is big on building aircraft. Try and encircle and destroy some divisions early on in places like Quebec and Florida, don't get bogged down in the Appalachians. Otherwise you will be fighting what is probably the strongest individual nation in the game. ^If you are lucky, the CS army will be a paper tiger, as sometimes happens with the American factions.
