There is a reason why I don't like to play OKW. Brandgranate and Panzerfaust simply arrive to late and Püppchen still is a troll weapon with low surviveability. 1vs1 ok, but for me the fraction is trash without an Ostheer-player in larger games.
I agree with removing the vet requirement but removing the forced reload would make it too good of an ability and it would just get popped every engagement.
I think it's solid now honestly. Hits infantry enough that I'm definitely satisfied with it and its got pretty good AT and survivability as well. It also has a lot of utilities.
Now that they have almost the same range as other at guns and have an extra man, I don't really see why they still have retreat. Why they need it more than any other AT gun is beyond me and having it just makes it easier to play really risky with them and not be punished for it at all.
Also why would you play brits rn? They suck and have nothing redeeming about them as a faction except commandos.
Shocks and suppression is usually the best course of action in the midgame. If you can suppress the blob following it up with some shocks will force him to retreat, and in the lategame any high explosives from vehicles like t34s, katys, or IS2.