Set a few years before the events of Episode IV A New Hope, Empire at War lets players rewrite history as well as experience the aftermath of Star Wars: Episode III Revenge of the Sith, the creation of the Rebel Alliance, and Darth Vader's rise to power.
This is a RiverSide's Demo Mod.
With this mod for the EAW Demo, there are Star Destroyers for the Imperial side, and you get Mon Calamaris. You also get access to A Wings, Assult Frigates, and heavy tanks. You will see the changes on the single player demo version.