Identification of a firearm in a WP

[Joe N]

Hello Gentlemen,
One of my WP is from a Sudeten German who was killed in January of 1944 near Leningrad. I have always wondered what weapons he has listed as being trained in in his WP. I know of course the MG34 and the K98, but can anyone else identify what the other writing refers to? Thank you very much in advance,
Joe

[Erich B.]

Looks like s. M.G. Ausbildung bei F.E.B. 212
Heavy Machine Gun instruction course with the F Ersatz Batallion from 19 August 43 to 12 September 42. Not sure what the 'F' stands for without seeing the WP or looking at this again in the morning.
Erich

[SplFrcsCWO]

Isn't "F" Feld?

[Joe N]

Thank you Gentlemen! I will post more pics of the WP, mods, if this needs to be moved to another forum, please feel free to do so, thanks,
Joe

[Joe N]

pic

[Joe N]

pic2

[Joe N]

pic3

[Joe N]

pic4

[Joe N]

pic5

[Joe N]

pic6

[Joe N]

pic7

[Joe N]

pic8

[Joe N]

pic9

[Joe N]

last pic, I could not find any information on this Gentleman on Volksbund.de Any information regarding this unit or his details are greatly appreciated

[SplFrcsCWO]

What is a "stammkompanie"? Google was not helpful...