I have already explained it to you. Soviets need a stronger stock tank because the t34 is literally the best tank the soviets get for the entire game. Not only that, but it is the entire late game of soviet t3. If soviets are to be expected to survive without callins (which is what everyone wants), the first step will be giving them a late game worth etching for.
Currently, the t34 is the weakest tank, but it cannot gain a numbers advantage due to its cost. For the price of 4 p4s, you can get 5 t34s, and the 4 p4s will be dealing more ai and at damage, while simultaneously also scaling better in future engagements thanks to the significant vet 2 armor buff. On top of that, ostheer has the option to tech to t4, for more powerful, well armored, specialised units, while a soviet must spend more fuel to tech to their t4, which gives acess to the defensive su85 and the defensive katyusha. Soviet t3 +t4 has no breakthrough unit that can tank blows. The t34 needs to be more spammable, or it needs to scale better in some way, or soviets will have no chance without callins.
Also, the 100 fu cost does not justify it's current performance, as outlined above. Its simply not cheap enough. I could make obers cost 600 mp, and they will still be the most powerful long range infantry, but they would still be cost ineffective.
im all for a slight t3476 veterancy buff +cost buffso it can actually duke it out with panzer 4s once vetted
But let's be real
Callins themselves will never go anywhere, they will always have a late game if you so choose.
The the T3485,KV1,Is2,ISU, ETC will STILL BE IN THE GAME duking it out with German steel in the late game
You won't be able to simply spam these good tonks and stay at t0>t2. That's what everyone hates
You'll simply have to tech to the callinz
and make your late game better.
Just like Prosteer will hopefully have to do with their big cats, hopefully
Now this doesn't solve the issue of doctrines like reserve army not having a call in tank and therefore no late game worth a crap,because like you and others are saying the best tank the soviets have outside of "meta" doctrines is the t3476
and the only way to allow it to scale is going t3 t4 which is impossible CURRENTLY
the only real solution outside buffing the t34 to unreal levels
Is If they made a certain up gunned medium tank stock for all doctrines, and left other callinz to their specific doctrines....