The Dark Times is a Star Wars Battlefront II mod with a heavy single-player focus. It adds many new features to the game, including (but not limited to!) wave modes, randomized units, heroes, and skyboxes, and AI hero support. Its sequel, Rising Son, adds more of the above as well as several new maps and scripted missions.
That level always got me goin'... Just slam on down like a badass and start ripping s#!t up... And the duel with Vader, little irritating, but epic nonetheless... I hope this level is as epic as this screenshot makes it look!