As is incredibly well known - OKW struggle so hard against maxim spam and or British infantry/mg's held up in buildings or trenches on most maps where the abuse chance is high This on a cut-off is gg with certainty. It really is not fun to play against. Wehr are somewhat spared by the simplicity of having a mortar/rifle grenades and relatively fast T2.
Solution: Give sturmpioneers a smoke grenade. It fits the unit really well in terms of balance (it cannot be spammed easily) and adding another role to the unit, imo, adds a real nice level of authenticity - having many roles to play in an army that was reformed with heavy losses to account for.
Buff the volks 'quick fix' flame nade that never existed to do a bit more damage? Do people like this nade anymore? It got nerfed when it was OP but now it doesn't do much at all to 6 men squads. But then it has its use of moving a unit out of green cover in a 1v1 engagement to normally win it.
Smoke shells on ISG is interesting but comes too late no?
Even if you think strategic position/knowledge is enough to beat this spam it's not fair in that OKW have so few options for dealing with such abuse compared to the rest.