i beleive there is a serious with the upgrades, aside from the muni problem, of which there are few very good solutions proposed by community members.
When you upgrade, say, nkvd rifles, only new squads get the upgrades, aside from the molotovs. this does not support unit preservation as much as it should, and i think an army which supports unit preservation more is a better formed army.
Also think that by the time you get this upgrade with 200 munis are you really gonna buy more conscripts when you can get much better units for not much higher costs?
i think that the already made conscripts should get them, not immediately but when they reinforce all squad members that died without a rifle get a rifle when they're replaced and you pay a reinforce fee to get the guy with a pistol in black, and so on