I think conscript Ppsh upgrade is fine. Way better designed than some other no-brainer no-downside weapon upgrades.
Bingo! Con ppsh feels bad because it comes from a time when choices mattered and things had drawbacks. Ppsh doest increase dps at all ranges, in the move, ignore cover and grant a fuel air drop in base everything it kills a model so it seems weak in comparison.
Obviously the fuel thing was hyperbole but we now have a game where lmgs which were designed to be defensive weapons that offset small squad sizes can be dual wielded on the move by 5 and 6 man squads. If course an upgrade that you actually have to think about if you want to convert an OK at all ranges squad into a trash at all ranges but close squad. Everything is relative