Haomarush was among the leaders of the last remnants of the demon-worshipping orcs, all under the rule of Jubei'Thos and the Blackrock clan. Being one of the lesser Blademasters within the clan, Haomarush was given command over a small contingent of the Blackrock Scouts, which he used to survey the area around the Alterac mountains, where they had constructed a settlement to guard a demon gate. During one of his scouts, however, his troops ran into Arthas, and the dark prince quickly routed and killed them all, despite his skill as a swordsman.