I am researching this unit for a friend's father who was in it.He was a loader for an 88mm when his unit was overran by Russian tanks. 2/SS Flak Abtl. 4 is the 2nd SS Anti-aircraft Battalion, 4th Company, right? If so, then they were part of the 2nd SS Panzer Division. However, the father has stated that he was trained by the Tokenkoff division.