Then we are talking, define clearly the buffs and nerfs (Numbers, based on what, which impact could it have ect...) and we'll progress toward a change (healthy?) for the SU (and the opponent?).
i dont have exact numbers tbh... i am just citng units i feel are overperforming and units that are underperforming... i do have some opinions though
zis = 15 popcap 360mp cost
T-70= armor to 55 penetration -5 all ranges /changed to 260mp 65 fuel cost
T3 to 35 fuel but only has M5 HT available... 7 man conscript upgrade is unlocked by building T3
7man unlock in T3 renamed to T3 vehicle authorization cost changed to 45 fuel: unlocks SU-76 and T-70
SU-76 = +5 firing arc on both sides + some sort of sherman dozer like upgrade with a price tag of 40 fuel and increases damage per shot to 160 and +80hp
penals = price to 270mp armed with 3x mosins and 3x SVT.. AI upgrade to 6x SVT for 60muni mutually exclusive to PTRS upgrade (performance is flattened)
SOV sniper = made into a clone of the ost sniper but with flare instead of incendiary shot...
maxim = buff suppression to MG42 levels... increase packup time by 1s
some changes im not sure of
KV-2 = (quite oppressive in a teamgame with its huge barrage range) higher setup time for barrage mode
ISU-152 = i think this unit is fine in teamgames since its counter (elephants and JTs are there) and its too wonky for 1v1s... im undecided here