Best vet 1 ability? What about the ability of spotting for itself that SU-85 has?
You can overcome it with doctrine choice as its supplemental and not strat defining for ost. Spotting scopes say hi.
Also, jackso always did ok without any self spotting, so as you can clearly see, its not mandatory in any way and I definitely would NOT put it above ability to stun and easily kill the tank.
You can bypass StuGs disadvantage, you can't do anything about SU-85 performance.
Is that a weaker ability? Like any other TD, it will be hardcountered by cheaper units. As long as SU-85 isn't OP, nor should be the Stug.
SU-85, jackson or JP4 can't disable the target, securing the kill and don't vet like mad.
StuG will.
If SU-85 had TWP instead of focused sight and loltracking, the cries of OP would never end.
StuG changes were implemented with some other changes on mind as well, so we're getting only half of the balance here.
In contrast of that, there is quite high probability that StuGs will be OP, just like T34/85 might be perceived because only half of the call-in changes made it to the current patch.
You can't really argue that.