NAGr.2 in Greece?

[Schenck]

Would anybody be able to share any details about the task and operations of this unit while based in Greece. In particular, I am interested about 3.Staffel at the end of 1943 and beginning of 1944.
The reason for asking this question is, it dawned on me that while going through ULTRA decrypts, this unit barely figured in daily operational returns for units based in Greece and those were pretty regular for mentioned period. The are few references to strength returns, some movements for both 2. and 3. Staffel through Yugoslavia as the war progressed, but nothing specific you can hold to. I can remember just few times Bf 110 having been mentioned operating recce tasks in areas of North Greece, Albania and Yugoslavia (Montenegro), but really only very few times.
I know that serviceability was an issue, one report gives it as less than 30%, but still...?
Was it some sort of a ghost unit that everybody forgot about, or....? Gratefull for any information.