So I was thinking, Why not have a Modernized 'nam and back gun pack.
I hade a few examples in entrepreneur my gun.
Sturmgewehr 44

PM-63

I don't have much to show for ideas, but it would work. Having modernized guns of the past in Bl. Because uniqueness.
Suggestions if made; Animations (Not that stupid T+T reload. that just looks idiotic.), Hands (If you want to make it look a tad more real. hands are just to be there as a side object. Making the gun look cool.), powerful sounding.
Edit; On Guns that have Select fire, make it so they can at least change fire-mode. Also, The PM-63 should be able to swap between the way you see it, and a sort of pistol instead of the automatic. (Slide and foregrip collapse. That stuff.)