Dopped weapons should be destructable like everything else.
The fact that German weapons are usually worth more is offset by the fact that their squads also have more free slots. Picking up a weapon with Conscripts means no seventh man. Picking it up with Grens means you're still able to upgrade your LMG.
If I say,LMG especially LMG42 for any 6 men squad will be very useful,even Ostruppen...And Soviet squad not have accuracy debuff,cheap 6 men with LMG why you think it worse than 7 men upgrade...
And basic COH2 game rule,4 men with 2x slot weapon when you lost 3 men it will have chance drop weapon,6 men with 1 or 2 slot weapon of course hard to drop,I think this is why already reduce Soviet Guards DP and PTRS and USF BAR drop rate,and I think no reason make single squad too strong,like 2X LMG34 Ober squad ,2x LMG or PanzerSchreck Soviet squad.....