The soviet war literature is the same as the american. "We are the heros, the others are the dumb fools."
An other thing were the military literature, which was intended to teach lessons to the new military generation. From tanks over planes to air defence. There were also analysis of different wars after WW2, from Korea to Falkland, and mostly without any idiological rubbish.
Biographies would be also interessting. Pokryshkin, the soviet no 2 ace in WW2, wrote a very interesting one. Then there was a czech or slovak author. Franticek Faitle, who fought first in the RAF and then moved to the USSR and then was transfered into the area of slovak national rebellion to fight with La-5FN against the german Luftwaffe in Slovakia.
Problem. All in german translation. I doubt, that english translations are available.
Edit, the czech pilot was:
František Fajtl
https://en.wikipedia.org/wiki/František_Fajtl