On 81/82mm Mortar, again, Ost has better rate of fire, and Sov has a (stat guys halp!) better AoE. I dont honestly know about accuracy difference. Not on topic, but I think Sov Mortar may need a buff in comparison (Warning: Precision Strikes absolute accuracy. But since its for Muni, Im ok with that. Its Counter Barrage that sucks in comparison).
But again, shouldnt these two units be balanced according to their rate of fire, accuracy and AoE, NOT on unit size?
I believe that the German and Soviet 81/82mm mortars are identical in terms of damage/aoe/penetration/etc - the only difference being German fires more rapidly and has a 4 man squad. Soviet fires more slowly, but has a 6 man squad.
Overall the Soviet mortar generally performs significantly better. It is shooting at 4 man squads and as such has a stupid amount of potential to instantly kill a German squad. Vet 1 precision strike is pretty much a guaranteed de-crew of a German weapon team while counter-barrage is really pretty useless (it needs to increase range, or something).
Maxims are insanely overpowered in their current state and MG42s as terrible/borderline useless. Even outside of MG42s just being statistically awful at the moment, Molotovs pretty much force an instant retreat of an MG42 while a Maxim can soak 2-3 rifle grenades while suppressing three German squads from three different angles.
Don't even get me started on DShKs...
Also the fact that 6 man squads are so vastly superior to 4 man squads.