OKW doesnt have riflenades. also if you where forced to use a riflenade against every maxim it would be a massive balance issue. ost has more tools available in the form of mortars snipers and 222 scout cars the okw doesnt.
But why dont you tell me why maxim should even exist and why this tactics that goes against every single principle of coh should be so effective.. i never heard of mg42/34 spam or 50 cal spam.
MG42 spam used to be a very viable strategy until the m3s and mg crew armor Nerf came in.