Back to the topic. I think STUG would be more viable if it had a special shell for penetrating heavier units.
It's current ability is useless it does half damage and hardly even stuns. Stuns enemy only for 2 seconds literally. Really no point in that.
The Pak 40 which has the same ability is way more efficient and defined. Since it does full damage and stuns better.
STUG needs a different ability, Penetration shell like what Jackson and Wolverine has to combat heavier armour.
There is currently no point in using STUG really. Just against mediums which is quite useless all in all. As a tank destroyer, it needs something to enhance its capabilities against heavier armour.
Then there would be more reason to use it. Same goes for Jagdpanzer which apparently has also a hard time against heavier vehicles.
Panther seems to always do a better job penetrating tanks than either of these 2.
Main target for stug - allied mediums, not heavies. It hardcounter any medium, but if your enemy build heavy - build panther, pak or another stug. Or you want that 1 stug could deal easily with is-2? Build 3 stugs (cost will be like 1 heavy) and you have hardcounter to is-2, churchill or any other heavy. If you want OST copy of su-85...balance. You have doctrinal elefant as su have doctrinal t-3485.
I just can't understand why you want that OST T3 have ALL tools to play in any timeframe? Maybe we also will add to OST t3 werfer and brummbar to have AI against static defense? Why not?
It was already proved that STUG do it's job and do it pretty well. No need to rework units that works, we have enough broken units that need rework (cons-penals problem, maxim, su-76, wstuka and e.t.c).
JP struggle against heavies? You are joking? The best non-doc OKW tool to keep in bay any ally heavy. No one never will be dive with heavy on JP4 (only noobs will do that). You just give it free vet and will go to the repair.