In my suggestion the Hetzer would still be doctrinal (Ostwind too) but would come ~70 fuel earlier than it currently does in live, which should give it a significant boost in usefulness due to a much bigger shock window. Since it doesn't instawipe squads and doesn't have good armor/hp I don't think it would be overpowered at that timing.
Making it nondoc could be an option, as this would really help OKW with mid-late game blob control (since they lack a vehicle like the Brummbar) but it would be a very significant change. What would you replace it with in the Feuersturm doc?
Glad to hear you like most of the suggestions!
Ah sorry my bad, I read that particular part too fast then.
Hmm I think 70 fuel earlier can be really dangerous on Hetzer. I noticed that fast Hetzer rush (medic hq into t4) can already be a threatening strat in the live version if the opponent only has snares and AT guns as his whole antitank source, cuz a Hetzer can wipe an AT gun crew frontally very fast and every single time cuz it doesnt rely on lucky RNG.
Hmm what replacement in the Feuersturm doc... that's actually a really good question. I dont know a sensible answer atm to be 100% honest. Maybe we should forget about my replacement idea for now.
Other than that I just can repeat how good almost all of your ideas are. It really shows you deserve your spot in the patch team, you have a good sense for balance.