aside from the nerfing of the landsers and the brandenburgers, some units buff the faction such as the new rifle grenade unit, the skirmish commander, and the extremely powerful jager squad.
They are also very effective when grouped with 3 or 4, especially against the soviet faction. Their main troops conscripts and some inginery are very vulnerable to the rifle grenades due to their extremely low health per man, making the grenade very deadly. Imagine all 7 conscripts blobbed behind one small wall, they'd be dead if the rifle greenade hit dead on.
the sturmpioneers with the upgrade seems lacking for 75 munitions. I know it helps increase defense but g41s are still low in terms of dps compaerd to other uprade ssuch as the mkb42 from the jagers.
keep them at 75 munitions, just give them better rifles like g43's with the same DPS as panzergrenadiers, except 3 G43 instead of 2. That would make for a better squad.