Ost, USF and USSR are all well balanced.
UKF, remove brace and then remove the stuka, flame attack benefits etc to level the field.
OKW, replace shrek with faust. Buff rakken but remove ridiculous clock. Add side tech.
THEN
can we please take a look at some of the units that really, really, really need attention:
penals
M3 HT
Greyhound
KV-1
all static artillery (vs one click stuka callins etc)
sexton
valentine
standard churchill
In an ideal world I would remove all FRP's and loitering airstrikes too . Then reduce the effectiveness of all handheld AT (except piat cos lol) but one step at a time eh