Remove FRPs from USF, OKW and Brits.
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No more blobs problems.
Simplest solutions are the best
+1
To the point, simple and yet it would solve so many problems and would make half tracks more viable and reward soft retreating, unit spacing and scouting, all good things.
Lmgs are, as you point out, another issue with blobs, however, bars and brens less so (or not at all) than 1919s, lmg42 and lmg34s because bars don't have their peak performance at max range and drop off quite a bit at that (2 bars << 1 lmg42 at max range). For the stat savvy, yes, there is some drop in the damage output at max range for these lmgs but it's neglible at best.
This behaviour of 1919s and the other lmgs makes them perfect for a-moving, which shouldn't be the case.
Except for airborne, it also shouldn't be possible to double equip 1919s. It could also be reletively easily solved I think - haven't tried it though, but Cruzzi or Miragfla might know- by just requiring 2 weapon slots for the picked up version. Should it underperform comparitively with just 1, it could be slightly adjusted, but I don't expect this to be the case.