A vehicle project by Steyr as a special artillery transporter that would be able not only to transport the gun but also to fire it from the chassis. To keep costs down and reduce complexity, the design used many components of the Raupenschlepper Ost, a tracked artillery mover. The turret and gun were supplied by Krupp. Only four vehicles was built. The gun was the 88mm Pak43. Only the tracks and lights are textured, the hull & turret it's mapped for the bumpMaps only.