Gunheads is an Imperial Guard novel by Steve Parker and was first published in 2009. It is also collected in Hammer of the Emperor (Omnibus), the second Imperial Guard novels omnibus.
Shortly before the Third War for Armageddon, a Cadian Army Group is landed on Golgotha, to retrieve the wreckage of the Fortress of Arrogance, Commissar Yarrick's famous Baneblade tank. Though the Army Group numbers approximately thirty thousand men, complete with tanks and artillery, many of the level-headed officers know that the mission is suicidal, for such numbers will hardly make a dent in a planet full of Orks. But the Lord General in command of the expedition is desperate to win glory at any price, and the Mechanicus Adepts guiding him have their own agenda.