Which is why I want it brought down to 4 men, with an accuracy increase. The PaK shuld also get it; I find that it's just not punishing enough to get your tanks into an AT gun's field of fire right now. They miss too much, especially at long range.
As for Ostwinds, you mean you need SU-85s. ''lousy'' AT or not, it still owns the T70 and can almost reliably pen the T-34. Said T-34s cannot kill them fast enough; there's always the ram option of course, but short of using that risky ability you have very little that can actually kill T3 tanks short of the overpowered SU-85. That's a big problem with Soviets right now; SU-85s + guards + snipers is OP, but deviate from that and you have gaping holes in your tech, because only the SU-85 can reliably engage enemy armor. AT guns get decrewed easily and are too innacurate, mines rely on luck, Guards cant pen, T-34 might as well not exist against tanks if it doesn't ram. I've had several Ostwinds waltz into the range of two AT guns and decrew them both after dodging 2-3 shots while my Conscripts were busy stemming the tide of the grenspam. I've had T-70s do similar things. It infuriates me, as in VCOH any tank save a doctrinal heavy that attacked 2 AT guns without flanking was turned into scrap in short order. In this game half the tanks can laugh at their presence if they don't have heavy support.
I'm OK with an asymmetry of survivability vs. accuracy in the AT guns (i.e. with them being less vcohey).
T-34s work fine against an Ostwind (unless the Ostwind reaches vet 2). They don't instagib them like an SU-85 does but they will reliably push one off, and kill a damaged one not too slowly. After the T-34 rebalancing they'll probably be a bit more of a serious threat 1 on 1.
I'm playing Soviets as T2-T3 (sometimes even T1 + guard motor doctrine - T3) on Kholodny at the moment. The T-70/34 pack can trample infantry and stop an Ostwind from running around doing damage, 1 or 2 AT-guns discourage P-IVs, maxims hold back grens. Everything works pretty well, and the presence of AT-guns and the lack of squishy snipers means you don't necessarily need guards.
I kind of think people are underestimating Soviet T3 by comparing it to Soviet T4 (or, basically just SU-85s) right now. Don't think it's in that terrible a position, though a small T-34 buff would help it against P-IVs.
Edit: this said, I absolutely agree that StuGs and Ostheer T4 need to be more attractive relative to P-IVs. The Brummbar is maybe even in a less useful position than the StuG right now.