Panzer jäger grouping, help!

[schönbeck]

Just bought this little group consisting of 4 docs.

Wondering about the last document he received, for the Eastern front medal, as far as I understand Stalag was a POW camp, in this case for mainly French prisoners.
Why serving as a Panzer jäger and then being a camp guard? Also notice that he went from a Gefreiter to a NCO in less than a year.
The Stalag doc also doesn't mention anything about Panzer Jäger as well.

I see that one doc is hand signed by quite famous Officer Nehring, but who signed the Stalag doc, looks like the commander but who was it?

[hucks216]

The date on the Ost Front Medal citation might not be the date it was issued to the soldier but the date the award was authorised/ordered to be issued by the original unit, so it could well of been sometime in 1943 when the soldier actually received it, which could account for the rise in ranks in that time frame.
It doesn't mention Pz.Jäg.Abt 88 because the man was probably no longer serving with the unit and was serving as a camp guard (maybe suffered an injury that ruled him out of further front line duties). But alot of Ost Front Medal citations don't mention the soldiers unit anyway, other than in the stamp.

I've no idea who signed it I'm afraid as PoW camps isn't my area.

I'm wondering though if the signature on the Assault Badge & Wound Badge citations is that of Karl-Heinrich Rudolph who won the DKiG as a Major in s.Heeres-Panzer-Jäger-Abt 662 on 17th November 1943?