Chig, both Focke Wulf 189 and Heinkel 219 were called Uhu. The FW 189 was primarily a recconaisance aircraft, but several were modified to act as night fighters with radar and a Schrage Musik installation. The Heinkel was a dedicated high speed fighter, again equipped with radar and some were modified to have the upward firing cannon. Would be interested if you have any further detail re the FW 190 variant, I have never heard of this arrangement on a single engine fighter (especially in the wings).
Regards
Kb