the problem lies in the okw starting MP reduce it and u fix it
Expanding on it.
You remove around ±30mp from the initial mp pool and you give it back in cost on the SwS. This slows downs OKW Volk production and fielding while still maintaining the total tech cost for the faction.
USF struggles against OKW cause you are fighting RET vs SP as your starter unit. Then either Kubel gets cap speed and/or you get outspammed early on by Volks.
Volks basically trade evenly against Rifles unless Rifles manage to engage them below 20 range. Whoever is defensive is more likely to win unless Rifles can approach from blind points.
OKW usually gets 4 units + SP. Then techs.
USF usually gets 3 units + RET. Around 2:30 they will tech towards one of their officers. It takes 70s till the officer arrives.
This is when you get an edge as OKW against USF.