When the body count from the Second War for Armageddon was tallied, one name was missing: Ghazghkull Mag Uruk Thraka. Commissar Yarrick alone understood what that absence meant, and he tracked the warboss to the isolated world of Golgotha, where Thraka is rebuilding his WAAAGH!. Yarrick launches a surprise strike backed by the 117th Armageddon Mechanised Infantry and the unwavering 66th Mordian Iron Guard. The player commands the Mordian Iron Guard across the campaign, ultimately gaining command of Yarrick himself atop his legendary Baneblade, the Fortress of Arrogance.