It should be super-trivial to add this suggestion into a mod. The only forseeable issue I see with it is what happens to strong short-range units, like commandos.
If commandos spawn with rifles, say hello to double-bren commandos.
Don't give them rifles when they spawn then. Give them pistols or is a knife/bayonet possible? If not, there must be another less rapidly lethal weapon that takes up a slot... Scoped Lee Enfield?
I have to agree with people who say this will remove yet another sniper counter from the OKW. I would say only have the weapons delay in smg/lmg infiltration units, leaving Jaegers how they are.