Ime soviets struggle harder in 4s then in 1s....
I agree, with the addition that the AA nerf to the Quad probably should be accompanied by a price decrease.
I have occasionally seen where it shoots down a plane immediately. However, in the previous version it took forever, especially for a unit that you only buy for the AA ability. The 2 to 3 revert probably should be have went to 4 or 5.
Also, the SU76's vet 3 bonuses should be more like the Puma's - take out the barrage improvement and give it mobility and damage. That would make it more of a choice, as it would be decent at vet 3, assuming that you could get it to vet 3.
It also seems strange that the ISU is considered a balance problem but the Brummbar isn't. They both wipe squads in the same number of shots, but the Brummbar arrives much earlier and is non-doctrinal. It forces a retreat on almost every shot as the combination of one medium AOE and one long is enough to kill any model, so the chances of not getting wiped in two shots are small. I use both - the ISU doesn't seem that great until it gets vet, while the Brummbar is good at vet0. Also, with 800HP and over 200 armor, the Brummbar makes a good damage sponge.