Come on, guys. ZIS-3 barrage cost 60 munition and su76 cost is 75 fuel and its barrage have really long recharge time
Most abilities cost munitions...
The Su76 should be left alone, it's fine the way it is as it comes slightly later but the ZIS-3 should need to be vet 1.
The problems I see with ZIS-3 needing vet one is:
1.Germans don't produce enough light armor early game for it to vet to 1.
2.It would have to be lucky enough to kill enough infantry to get vet 1.