Easiest way is rework cons not tone down all other WFA infantry. What work is easieast - with 1 object or with 3 different? If you tone down WFA infantry, it's not change situation with weapon upgrades. If cons will be strong as WFA infantry it will be huge disbalance, because you will need STG upgrades to deal with cons. And after that you will be must to work with ALL infantry in game....Dead loop.
And don't forget about penals and soviet elite infantry. With toned down WFA infantry they will be looking as gods in comparison to them.
No it is not. As I have explained high lethality means that fight last very little time and more RNG than tactical. If for instance assault infantry lose half their models on approach they become useless.
On the September patch small arm fire where about balanced and only small adjustment where needed after that:
1) Tommies where introduced
2) Penal had their far DPS doubled
3) VG got the weird MP44
4) Riflemen got a T0 mortar
all this destroyed the infantry balance. The way to is nerf upgunned VG, riflemen, Tommies and Penals.
In addition Soviet have some design in mind that leaves room for Penal/conscripts and Elite infantry and that is what is suggested here.