John, you understood me correct: Before that I never heard officially of fighters with these rockets. I thought "just" Schlachtflieger had them.
But nevertheless I gave some incorrect infomration above: I didn't find this in the Bundesarchiv. I only found in a list that the BARch has such a document. The list is here:
http://www.gyges.dk/RL-2%20II%20Bd%2...%20ver%202.pdf