Excellent AAR, I've fought on this ground before in a few campaigns against the AI. It is not an easy place to manoeuvre. Sounds like your enemy used his arty in true Red Army fashion. If nothing else your force was likely typical of the time especially the shortage of arty.
I’m curious did you use your 251’s to help fill your MG shortage? As well did you use you MG’s in area fire mode to counter the Russian Infantry?
I really enjoyed your extensive use of labelled screen shots. Looks like a lot of time and effort went into your briefing. Bravo Zulu on a job well done Commander here and on the Field of Battle.