PPSH Assault Package
The PPsh upgrade does need any buff it was dominant when buffed last time and suffers ony from power creep (see SVT).
If one was determined for changes one could:
separate "hit the dirt ppsh "a defensive ability and ppsh do not mix well.
and/or
create a separate unit
and/or
replace mosin with another weapon ppsh or toned down SVT (adjust ppsh if needed)
and/or
upgrade now take all weapons slots
and/or
offer a reifocment discount since CQC units suffer more casualties
Allied Supply Drop
The exchange rate 1/3 is the fine since it is standard. The ability is map depend is counter in some map impossible to counter in others. AA/Planes interaction need an overhaul.
B-4 203mm howitzer
Since the CD nerf to howitzer the unit is up compared to other howitzer.
The direction is good, I would suggest thou:
longer CD
and/or
Less damage
and/or
bonus damage to structures
and/or
critical to infatry/vehicles like injured driver/gunner, shell critical to infatry (temporary reduction to performance)
and/or
direct fire become a toggle mode with AT shell (no AOE) and sort range 60-50.
M5 Half-Track Assault Group
replace m5 with m3 lower cost
Shock Motor Heavy Tactics
Only thing commander need is removing the IL-2
Vehicle detection is a weak ability but the ISU is one of the most powerful super heavies so the rest of the abilities should weaker.
Zis truck is NO form me for reason above.
It is the Mechanized Support Tactics that need nerf and not this commander buffs.
Tank Hunter Tactics
No to B4 and to ML20. The commander is AT themed and AI units do not fit.
The commander could use the following changes:
tank ambush applies only to zis/su-85/SU-76. No penalties and extra vision as a bonus, using tracking or focus sight break camo.
B4/Ml20 replaces by scavenger or a new CE units that scavenge or by mark target
IL-3 AT bombing now delivers minimal damage to buildings/infatry but arrives faster and is cheaper. Cause critical like injured driver gunner.
Not a big fan of the rest of the changes.
Generally speaking Soviet commanders have some abilities that exist in many commander and some that are available to few commanders. Imo one should reduce the number of very common abilities and increase the number of more rare abilities. Some abilities like "tank hunter ambush" should remain "trade mark" to commanders.
This is an older and out of date post that show how frequent some abilities are:
https://www.coh2.org/topic/81491/suggestions-for-commanders-revamp
For instance one of the most frequent ability is shock troops with around 7 commander and removing them from commander that also provide other powerful units like super heavies could work wonder in increasing the "meta" commanders.