Escape. Quit.
Quoting Reddit: “You have to be an idiot to lose this game as a Soviet player.” The game instantly populates because no solo German player would queue for it and most just escape.quit.
Remove it until you figure out how to fix it or just scrap it entirely.
Step 1: Move defender´s spawn on last two points a bit more further away
Step 2: We need Idiocracy IQ test for attacker team (prefferably on every assault/invasion mode in every campaign) as entry requirement
In my experience it’s B and C where they get stopped 90% of the time. Pokrovskoe must mean “Free-win” in Russian or something like that.
Germans don’t know how to push a point is what I’ve gathered from playing both sides
Simple as that
Indeed…
Not aggressive enough.
However Mp and Mg guns are good for that.
They are already 150m away in the deep forest - perhaps you want them to be in the next country??
That would probably be welcomed for axis players 
Jokes aside, they are still able to get back quite fast and I don´t see many ways how to balance abilities of the players going against you in match.
B and C area is where the Germans are usually stopped but I see more Prokrovskoye assault matches where the Germans stuck at A because they stopped pushing after getting stopped on the first wave by PPDs or MGs.
I really hate the attic spawns even as Soviet main though.