I'd not say penals are overperforming. They are stronger than most mainlines, yes, but they cost 300MP, so they should be stronger. Also, PTRS gives them some power vs vehicles, but only vs LVs. They are bretty bad vs mediums and heavies. Plus, when they get PTRS they drop significantly at AI. AT satchel is hard to use vs carefully playing opponent. If u take T1, you need to fast rush to T3 to get some reliable AT, or backtech to T2 if your resourse control is not enough, or else you wouldn't be able to counter tanks well.
I'd say penals are not overperforming, but overused. That's mostly because using cons is much more difficult. I thought about making penals something like osttruppen, it may make soviet infantry play more variative.
T-70 had a veery long sight range, but that is being fixed, let's hee how it works.
As for SU-85, it got a time loop when switching from focused fire to normal, and vice versa. The self-spotting is effective, but punishable, cause u can't run away fast. Su 85 has a bad time against raketens, cause it can't spot them in stealth. Maybe reducing the pen for vet0 and vet1 but keeping the vet2 pen is a good idea. But soviets still need good stock tank destroyer, cause they face better armored medium tanks, panthers, tigers and especially brummbars. Zis alone would not fulfill this role, and SU-76 has been nerfed already to not being able to fight heavies good.
Guards are strong, but expensive. And they are not the ultimate unit. They win against mainlines, lose vs ranged elites. Button ability is quite expensive, and is a waste of ammo if your enemy has vehicle smoke.
Seems to me that your argument (and mine too) are all questionable anddepends on the point of view. The problem is, as I think, that there is no common understanding in the community on how should each unit perform in ideal balance.
a 300mp unit should be strong, but i feel the issue is timing for that strength. imagine if obers were a t0 unit for example.my suggestion of making them buy their svts would allow for a couple of things:
it tones them down for starts. its a very powerful squad to contend with from the word go, again they should be for 300mp, but they are very difficult to zone as they will dominate any 1v1 they encounter at any range (except sturms up close of course)
by tying their AI to an upgrade you time gate it that way. still strong, but slightly delayed at importantly at the expensive of something.
next, by making it an upgrade that locks out the PTRS for counter play its easy to tell how much AT they have on the field VS dominating infantry combat and then having a counter to lights as needed.
PTRS certainly lowers their AI, but AFTER they have been mopping the floor with you in infantry combat, so the point is kinda moot. they can now fend off lights and their vet still makes them pretty good at AI despite being 2 rifles down.
another important thing the upgrade would do is give the soviet a MUCH needed muni sink, this would take the pressure off cons getting one. people like upgrades, soviet lack ANY. win win?
SU85
i dont want the su85 to stop being the go to for enemy heavies, i want it to stop invalidating them. when the old su85 had the same pen as the zis i was at the forefront of saying it wasnt enough. it either (imo) needed the pen buff OR the vet 2 (massive...) 30% more pen. it got both.
deflection damage and reduced pen would make it consistent at dealing damage but also make it so armour values mean something for the enemy too. ATM is matters little if its an ost or okw p4, panther or tiger. the su85 will give results far more often than not making the axis tanks somewhat underwhelming given the premiums paid.
guards,again, not sure what it is about them and tbh it could just be the current climate of penals into guards and a whole lot of firepower afforded to that mixture that feels off who knows