SD:Schwim.

 is a German Transport unit.

Overview
Schwimmwagen was a German amphibious vehicle based of the Kübel.. The Type 166 was the most produced amphibious car with 15,584 made.

SS-Panzer-Aufklärungs-Abteilung 17 was had only one Armored Car Company while the rest equipped with Schwimmwagen.

Strategy
Schwimmwagen has the amphibious capability so German divisions that has Schwimmwagen can put small infantry team across rivers.