I think you made too many changes. All I was looking for was the tech overhaul. I like most of the changes you made to the Soviet tech structure. I'd also like an SVT-40 upgrade for conscripts.
Seriously, 39 pop for a King Tiger? Jesus Christ. That leaves barely any room to support the damn thing. I already feel like the popcap is ~5-8 point too low as it is. I always am missing just 3-4 points to call in another good unit.
How would you implement a SVT-40 upgrade for Conscripts in a meaningful manner? Let me know and I'll think about it.
Heavy tanks in this mod are not meant to be prohibitively expensive but popcap inefficient. Their general ease of use, survivability, impact on the game and cost effectiveness are untouched; instead they are made so that you can't get much else and that weaker but more numerous units are considerably more effective for their popcap which is fair considering the disparity in micro required and effectivenes per resource cost.
It's also a soft nerf to the IS-2/ISU-152 call-in meta, and with T-34/85 out of the call-in picture, I believe I solved that problem without resorting to drastically altering the call-in mechanic.