Haven't hit the multiplayer yet? I only do Campaigns to pass time waiting for ppl to join the RTS. This is what makes the game. The Camps r fun but strategy against others is what made me love it. And for everyone else - there are supposedly like 3 expansion packs that will eventually be available. In the RTS, there are no Firebats, Dragoons, Wraiths, etc. A lot from the older units from the original game, as they are available in the campaign. I am assuming they will be added to RTS with the exp packs just as Brood Wars did with Medics, etc...