I can't imagine how this would work with Ostheer: Panzergrenadiers can already get panzershrecks, so what's the point of giving Grenadiers the same ability as a doctrinal slot, even if it is alongside LMG?
The Hetzer has no place for neither Ostheer or OKW, so there's no way this is legit. Th StuG and JagdP4 are hardier versions of the Hetzer, so unless this is some fantasy super tank destroyer lol this isn't going to be the reason why you'd choose this *fake* commander.
In any case, I'd think a true tank hunter doctrine would include the JagdPanther. You might as well get a doctrine called "super tanks" and have their penultimate call-in Panzer 38ts.
Relic said they weren't going to cease support for the existing factions. Just because OKW and USF are out doesn't mean the old factions are going to be completely abandoned.
I have the real feeling that i order to focus more attention on OKW and USF, they'll need to spend less time on the RU and Ostheer. Which leads to abandoning the latter.
This is the company that made a doctrine based around Conscripts with PTRS's. The worst AT weapon in the game on the worst scaling infantry in the game.
And payable DLC, no less. Even the free Defensive Tactics is preferable to this.