SD2:Schwimm. FlaK 20mm

 is a German Anti-air unit in Steel Division II.

Background
Some Schwimmwagen, Kettenkrad and RSO in  30 April 1943 were mounted with 2 cm Flak guns and were sent to field units for troop trials. These Schwimmwagen were too small and unstable to serve as stable firing platform.

These vehicles were a local creation with their Jäger counterparts in Italy created some.