I think the things to be balanced or fixed are:
1- Arty is being too powefull now. Specially Callipe and LandMatress. Its a garanteed wiped with zero effort and skill.
2- Double lmg. Should be only one.
3- 4men gren squad. Should be 5, and 280mp.
4- 222 should cost at least 10 more fuel.
5- T70 and stuart OP as hell at the beginning of the game. Ost has no proper way to counter them.
6- P4 and Panther for the OKW are a bit expensive. Should cost at least 10 fuel less.
7- Mortars too accurate. Specially USF one.
8- And last but not least, M10 and Cromwell are too good at running over inf.
Here is my take :
1- yea calliope and land matters need to be put in line with kat and pwefer
2-yea 1 lmg x squad no more than that
3-no the problem is usf mortar if we fix lmg gren will actually put up a fight vs rifle/is
4-yes and no 222 should have the old munition cost back for the cannon something like 80-100 mun
5-yea they just need to buff theirs mg but nerf the main cannon scatter
6- nah they are ok after all the tech cost is not that high on the other hand ost p4 and panther are over priced or underperforming
7- only the usf one is too accurate ty to vet but I would just reduce the damage of all mortar to 40 and double their air no more rng wipe
8- Cromwell yes, m10 no