34-76 is something what you cannot use like quantity over quality esp vs okw so yes, 34-85 should. Besides it dies as quickly as 34-76 so nothing to worry about actually.
All factions have non-doc weapon upgrade for core infantry (grens, pgrens, vgrens, obers) or even racks (usf, tbf) what means no limitation of which unit can use it. Looks fairly, doesn't it?
you have good inf, Engineer Squad have non doc Flamethrower, you have very powerful and cheap hmg, its very good for you
Penals or cons cant have non doc ppsh, ppsh is a smg and all SMGs are doc, also non doc ppsh = new problem: very OP soviet inf
also you cant have non doc T34-85, non doc T34-85 = T34-85 + IS2 together, then this is a new problem again.
maybe you say okw have panther and king tiger, yes its a problem and king tiger must be doc
for penals i can suggest Bazooka (Lend Lease program)(one model - 100 mun)