You can't expect say "This is Horrible!! Add this and this and this!!!"
We have not said "You idea's are bad", we have said "Keep it Balanced". These super-sappers you seems to want included would mess up the game balance, but in no way is it a bad idea.
The Allied Engineer's also dominate the Pioneers, its not just the Soviet ones.I acctually just tried to kill some Pions and I may have to take back my last comment since my sqaud got ripped to shreds, with the Pions taking a minimal loss of health. I tried again behind light cover and managed to kill the Pioneers however, so it differs greatly given your squads cover status.
Guys. I'm pretty sure they're past the suggestion phase. Or maybe not. Idk.
My super sappers (not really super, just sappers used in late game) was made to not add an extra unit of assoult squad. But this was pointed that you have a mechical squad in doctrin, wich would fit perfect.