I hesitate to even ask this but why would you even think that?
JPIV is stellar against all tanks. It gets good damage, penetration, and ROF. To top that it gets great vet bonuses that buff the tank quickly. If that is not enough it comes out ages before any serious tank hits the field.
If you are not able to use the JPIV to hold off or even destroy an IS-2 as OKW you are not playing well.
It's ROF and penetration are worse than the SU-85. Which I assume you don't rely on to counter King Tigers no?
Mostly because a single AT gun sitting beside the IS2 counters your JPIV is why you shouldn't rely on it to fight IS2's for you. Ways to fight IS2's: Jadgtiger, mines, Panthers, make capturing enemy ZiS guns a priority, C-Panther
Ways NOT to fight IS2s: Shreks, Rackten, JPIV, PIV Battle group, KT.
The JPIV is best used for countering enemy medium armor, if you do get lucky enough to vet it up then yes it will do okay versus an IS2 but the same could be said of the SU-85.
Thats still much better then SU-85 on the move.
Play more OKW please, they both have the exact same accuracy on the move.
The SU-85 has slightly better penetration and a better ROF while having nicer mobility. The JPIV's strength is it's better armor and nicer vet 1 ability.
On the move it has same acc like SU85. Stationary it's better than SU
It has to constantly rotate to fire it's gun due to the fact it can't traverse like the SU-85, so the result is about the same.
And you have problem with that why?
You clearly have close to zero insight on foreseeing impacts of changes and balance-I'm getting paid to do that. You don't even know what is wrong with the game and why soviets use double ISUs or IS-2s.
Let me enlighten you-to counter double Tigers. Now, how possibly could we stop that without buffing, nerfing or impacting game flow and economy while also encouraging players to actually tech instead of stall for heavy call-in spam?
OH I KNOW! BY LIMITING THEM TO ONE AT A TIME!
You don't need double IS2's or double ISU's to counter the Tiger. Soviets get them because both are cheap compared to teching and have excellent battlefield impact for said price.
Lets also ignore that SU-85 will deal with Tiger because of range, Jackson will do because of range and why do you think JP4 can't? Too low range?
Or you simply always assume vacuum situation with no other unit on the map? Which still gives advantage to JP4 because of its RoF, pen and self spotting as well as really good accuracy on the move.
Again, play more OKW because this isn't true.