Warhammer 40,000 Adeptus Mechanicus Ironstrider by Games Workshop With a distinctive two-legged walking tank-shape, the artillery platform known as the Ironstrider Balistarius is a fearsome sight indeed. As a mobile artillery weapons platform, the Ironstrider Ballistarius can be fitted with one of two armament options: a twin-linked cognis autocannon or a twin-linked cognis lascannon. The split-toed legs can be posed in two different configurations, with suspensors that can be modelled at differing angles, and the entire surface of the machine crawls with sensors, data collection modules and antennae. The gunner has four head options; three hooded and one rebreather.