i like the war in heaven but seeing how incompatible it is with others i just cannot use it, however it did give me an idea, GUNDAM! i've seen skilled modders create unique units so i thought i'd offer an idea as i am not a talanted

you could do the U.C universe aka the generic one or ALT universe's there's a good few factions with different suits AND ground/sea/air units, just food for thought!