Reducing the Sturmpionier veterancy requirement by X%.
Even as a fan of their veterancy, it takes quite a bit to get them at veterancy 3 even after constantly fighting in brutal combat.
Move STG44s to upgrade and replace with MP40s. Keep the same stats as the current STG44s act like SMGs.
STG44s become a upgrade after a Tier 1 (2?) for 90 munitions.
- STG44s excel at midrange, moderate at short, and decent at long. (Still losing to rifle equipped infantry)
- Beating any SMG unit at mid range and doing heavy damage if a SMG decides to charge without using cover or such.
- Stats unknown but enough to compete with Riflemen with BAR(s) at mid range and IS at this range as well.
Sturmpioneers would be better scaling in mid-late game with becoming a credible source of damage and protecting Volksgrenadiers, flanks, and other key areas. Synergizing more with the mainly long range oriented OKW squads. This would expand the OKW units and help with the current state of durable, high damaging Allied infantry. It would also still force the OKW player to make decision in concern of buying STG44s to help in infantry engagements, Volksgrenadiers for more anti-tank support, mines, etc. Hopefully to encourage more Sturmpionier play as they would have more use in the combat role and find themselves even more at home in infantry support of heavy armor play.
On the other hand, Allied commanders would have to be more careful with combating Sturmpioneers with STG44s as being credible threats outside close range would expand their threat range. For those concerned with the Sturmpioneers spam. They're costly in MP and munitions, lack any anti-tank capability, and can't counter garrisons without having a soft counter in form of concussive grenades.
TL;DR
Reduce Veterancy Requirement by X%
Move STG44s as a upgrade and replace with MP40s with no stat changes
STG44s upgrade cost 60-90 munitions. Excel at mid range, poor at long, good at close.