Over the Soviet okw has a massive 80mp bonus on top of competent engineers and conscripts+ this is compounded by the immediate 160mp cost to get out units that don't suck ass. That's a whole squad worth of MP AND lost field control of building the building then whatever non shit unit the Soviet chooses to build.
As it is that average of 40ish manpower would allow the Soviet to buld 2 constcripts and build their building or build a conscript, the building and then a mortar or very shortly build a Maxim.
And volks have been give HEAPS to allow them to perform better yet still are able to up fight effectively. They have been give a no drawback weapon upgrade they have been given a snare and they have been given a better form of the molotov (all of which doesn't cost extra manpower like the Soviet versions) AND have guaranteed MG support 100% of the time. They don't dodge bullets like cons at vet 3 this is true, but for literally every other purpose they scale far better. No they don't whomp the more expensive rifles and Tommies armed with far more munitions in upgrades that require additional manpower and fuel but I think for the massive side investment of literally nothing but trying to get tanks I think they do alright. Okw also has Obers to help take the edge off the more expensive and more invested in enemy troops.
Dunno where you're getting 80MP when I put 50 in those stats, and then mentioned the engineers. The "units that don't suck ass" dumpster OKW for the first 5+ minutes of the game and are virtually uncontestable.
Yes everyone knows cons are not as good at volks at every stage that isn't conscript vet 3. That doesn't make volks good when they get rolled 1v1 vs anything that isn't a conscript or riflemen pre BAR. The thing about the StGs being a "no brainer upgrade" is that most upgrades in the game are no brainer in comparison to units stock weapons. G43s, LMG42, bren, BAR, StG volks, DP28 guards. The only choices there are what situation are you in. Need mobility and aggression? G43. Opponet playing aggressive? LMG42 to crush at range and Pgrens to deny push. 2x Bren gun DPS still superior to lee einfields anywhere outside of 10 range. BARs literally no brainer unless you're losing REs and officers so you need a zook squad. DP28s because 6 man AT squad needs LMGs and light snare. Obers depends on range and garrison clearing ability and if you have IR StGs available.
Cons vet 2 molotov > volk incin. same throw speed, better damage and cheap toss. Pre vet 2 cons yes I'd rather have the incingrenade. Also says nothing about oorah.
So the question is, what do you want volks to do? Make them weaker and OKW might start suffering in winrate fairly well since they'd probably be on the level of cons with an upgrade but without the vet. One of the better solutions would make OKW tech really fast like UKF and soon to be USF instead of this non linear garbage and drop obers into t0 but require a truck down and then severly lower ober stats so they go onto par with rifles tommies 2x upgrades with their own upgrades and vet. That approaches "full OKW overhaul" territory though, and it will be awhile for that to consider occuring.