When The Scourge invaded Earth, humans fled to the Frontier Planets. There they were scattered, fighting for survival. Now, a military state has developed across the settlements of these planets, the United Colonies of Mankind. Their mission is simple - to liberate Earth from The Sourge, and resettle. Fuelled by vengeance, the UCM are using the rich mineral resources of the Frontier Planets to build their transport vehicles, dropships and weapons. All citizens of the UCM are soldiers and all are prepared to fight for their homeland.