The ISU-152 and KV-2 is extinct in 1v1
The 120mm mortar was nerfed several times
T-70 does 40 damage per hit and while it is one of the best anti-infantry in the game, it's certainly not a squad-wiper unless the squad is already below half health or you get a lucky hit when they're bunched up.
The IS-2 has the worst accuracy of any tank thanks to the 0.55 scatter offset while the Tiger and most other tanks have only 0.25 so tell me again how the IS-2 is wiping squads when the Tiger is much more consistent?...
1: KV-2 is not extinct, industry gets decent use now it has the fuel drop and on maps lke crossing the KV-2 puts in some serious work. The only downside is lack of shocks/guards, which will not be a problem now penals are buffed...
You propose 85 range which means you could cover half the 1vs1 maps in rotation with that thing.
2: ISU is probably the most common soviet heavy in 2vs2. It's niche is AI and already wipes extremely well, if you want to buff the AT it's gonna need some serious AI nerfs to balance the unit
Of course it's less common in 1's but heavy Assault guns are, look at how common the Jagdtiger or Ele are..
3: T-70 is the best light vehicle to wipe retreating squads in the game, AEC and stuart are nowhere near.
Note how I said wipe and not "one shot"
4: IS-2 wipes consistently, usually one shot and a couple bursts of the DSHK is all it takes to decrew a pak
I'm not deny that Soviets have very powerful tools at their disposal, but that doesn't change the fact that they're poorly designed and use the same strats more than any faction.
If you want to talk poorly designed then how come soviets have the non doc units to deal with every situation? Americans still have no non-doc arty and brits are hopeless without commanders filling their design holes
Yet soviets are somehow the poorly designed ones