Ostheer is my favourite faction but currently they are helpless vs USF.
Ostheer was designed as a static faction:
Grens with LMGs need to stand still.
PzGrens (hardly assault unit, works better when you let enemy close to you).
All basic infantry units need to stand still to be effective.
Panzergrenadiere were overnerfed. Or to word it better: They were balanced when Soviets were the only Allied faction in the game. Then US and UK came in with their double Bars and Brens which totally outclass PGs and make it suicidal to close in. PGs could need a great increase in their health to be able to withstand this firepower. LMG Grens can at least fire back with one MG42. PGs are an absolute liability.
It's not a deal versus Soviets since OST and SU have really good balance between.
Thus I think alongside with buffed PGs Conscripts should get something for the lategame. Once T4 is set up there should be a single DP-28 upgrade for 50 munitions. PGs would turn into an upgrade from Grens and thus both factions would have to offer a bit more lategame.