Sry I dont like the idea either.
A better approach in my opinion would be to move the suppression effect from squad base to entity base.
That way even if the MG supresses one member of a squad only that guy is pinned to the ground.
This would resolve issues like one guy sticking around on the wrong side of green cover but would still prevent blobs.
It'd probably get
very finicky with pathfinding, retreating and abilities.
Uh, that is, even more than they are already.
Picture this: with German MGs having wider arcs their advantage over other HMGs is naturally more coverage per individual MG squad, but their drawback is if they are pointing to the attacking a unit at their extreme left and must swing to attack a unit at the far right, it would take much longer than if it was a Maxim/ Dshk by virtue of having a wider arc.
Eh, there's not much of a drawback at this point now after Maxim traverse nerf (which I did find a perfectly acceptable nerf to Maxim spamming). Maxims traverse a bit faster (I think it's by like 6 degrees horizontally now) in their arc, but that smaller arc means it is physically
impossible for them to shoot at enemies on their sides at all at many more potential positions more compared to HMG 42/34s, who like you said instead have a bit of a problem going from one extreme of the arc to another, but at least have the capacity to potentially shoot enemies on their sides much more.