Yeah the mp 44 is a very very safe choice. Its the main issue i got with volks. Its almost invalidates cons, they cant fight them long mid or close range when volks are upgraded. Only after 7th man do cons become able to trade 1v1 again.
If the mp44 got adressed earlier or they got a different upgrade maybe, rifles cons sections and even pgrens pfussies falls didnt need to be buffed.
I'd like to see basicly the kit from firestorm swapped with volks core.
Mo40s frag grenade and smoke. Then you have an assault Option OR a defensive option (standard rifle volks)
The firestorm upgrade would then be a better assault option of course but doctrinally locked and would lose access to the smoke which I feel like as a stock option losing would have more impact that a doctrinal option not getting of that makes sense.
Put the flame nade on sturms stock to make sure okw can still burn out tough garrisons but not every garrison on the map at any time. They would need to bring in a specialist like everyone else.
I think those changes would round out the okw and allow for buffs in other areas. Or rather we would be able to tell what else is an issue without volks plugging all the holes. Combined arms and strategy should the goal.