The mod is called Star Wars - Warlords, so why not make a campaign about an imperial Warlord? You begin as a young star destroyer captain during the... imperial warlord time (after the clone emperor , not sure).., whose home base / home planet / home fleet has just been detroyed. Now you have to fight against other imperial warlords for the control over the remaining Empire. You make new allies, new enemies, start raids on the new republic, kill the warlord who destroyed your homeworld/homebase/whatever, and after lots of battles you reunite the empire (or at least you take control over your own sector, happy end) What do you think? Sound more interesting to me than just replaying historical battles.