the problem for okw is the UKF and USF faction. Both have mainline infantry which have no problem to deal with volks. UKF even can field early good MG. so u need luchs or other lv at start to deal with this.
problem: they have good AT option at the same time. they cut you off from fuel early and counter easy your infantry counter.
IS is really to strong and to upgradable. OKW need ober to deal with double LMG tommys. but. obers comes at the 10min mark. And eat our pop and manpower like hell. at this time UKF can field centaur. which easy shred all your inf squads.
UKF is the best and easiest faction actually. IS over perform so much that you ask yourself: what the hell. they kill one model with one salve.
early UC give your headache and cancer as okw.
then you realize: OKW is crap when u play ost which has better options and is better balanced since you have every counter unit to UKF (mg? no problem..get mortar. grens hold better vs IS and 222 is good vs UKF...or get sniper...or get mgs...so many possibility.
as OKW u stay there and have nearly only volks to build ...on many maps stpio are sub optimal and bleed to much. rakten is easy avoidable and volks are easy counterable with mgs.
if ukf so strong how come none of your ukf stats hit above at least 55% win rate ?