During WWII, the German armed forces were by far the greatest user of half-track vehicles. Such vehicles were used in the Wehrmacht, Luftwaffe and Waffen-SS, where they served as personnel carriers, tractors, combat engineering vehicles, as well as self-propelled carriages for anti-aircraft guns. Sd.Kfz. 8 Schwerer Zugkraftwagen 12t - (heavy 12 ton half-track vehicle).