NagoyaHammer.com

Its Epic, it's for the PC, it's free, it's utterly ancient, it takes about 10 seconds to set up, and it's as fun as I remember. At least it's fun when the AI does not choose an Imperial Guard heavy list and Thudd Guns me into Madboy chowder. Anyone else play Final Liberation back in the day?
http://www.gameswin.info/gameen.php?id=588

Yeah, I played it. The main campaign was ok, but I wish they had added more armies/options as it limited the replay value. The skirmish mode was fun.
Artillery was definitely the way to go in that game, or Ork Mekboy units. Those were awesome!