Panzerfusilier are borderline broken at the moment in my opinion. The normal squad is already pretty good once it gets vet, but with G43 they counter US and Soviet troops at exactly the ranges those should excel at. Even against snipers the G43 perform pretty good since they moving modifiers are better than those of the Kar98k. In general I think it's a no-brainer upgrade, as they get more vision range and get better at every single range as well as better on the move.
I am no pro or strategist but I am finding it very hard to counter the panzer fusiliers once they vet up and its so hard to wipe that squad with its 6 models. I have been trying to pin with 50cal. and then move in but these with an ISG are pretty damn good even against that. They do feel like they at least slightly nullify rifles strengths. What are people finding most effective to counter?