To cope with the indegent road conditions concerning the Eastern front side, the Germans built tracked tractors to tow all types of automobiles and offer to keep different lots from ammunition and dishes materials. Their state description of the vehicle ended up being “Raupenschlepper-Ost” (tracked tractor-East).The RSO ended up being built by the Austrian maker Steyr-works. It had a commercial-type pressed steel cab and a wooden cargo body. Another variations, after the RSO/03 built by Klockner-Humbolt-Deutz AG, had a less complicated, soft-top, slab-sided metal cab. It proved perfect for the mud and slush conditions about the Russian front side. Due to the “off road” abilities it was used as artillery and anti-tank gun even though the mostly utilized 75 mm. Pak 40 towing tractor.