All of these squads have less flexibility(though falls ability and weapon kit is most all around use here), all of these squads also forego defense for the offense and have low or no rec acc modifiers,
You analysis is flawed...
first of all units do not come with rec accuracy they come with target size...
falls=0.87, commandos=0.72, partisans=1, JLI=0.8, S.T.=0.75
Commandos come with smmaller size and better weapons, the rest are close and only Partisan have a big difference in is size. On the other hand Partisan come out with weapons and pay no premium for spawning out of buildings...
...storms start off with less firepower, but have best camo and you can select a role for them after initial strike, which is also useful(with StGs and good use of ability and camo, they might just as well be called axis commandos). You can upgrade their weapons on hostile territory
They do not have the beast camo because the get no first strike bonuses unlike commandos or the ostheer doctrinal camo...Their initial strike is either delayed because they have to upgrade with weapons fist or pretty weak compared to other units because their K98 are not very good for ambushes...Most OKW can upgrade in hostile territories and so can Airborne
...and decaping that point or chasing away HMG is what they don't really struggle when deployed, so they do fill that role here just as any other ambush troop. Upgrades are price-y, but remember their pshreck, much like volks, do not remove their AI potential compeltely and they can still be of some use here, StGs+ability+camo is well worth the cost already.
Decap and chasing mg partisan can do cheaper without even having to MU.
The Pshreck upgrade is laughable, AT partisan come with cheaper fully loaded and with access to mines and AT grenades making far better AT unit...
StGs+ability+camo is UP compared to commando and is not cost efficient compared to PG+camo+first strike bonus.
I still don't see why they would need ober kars, pgren G43 upgrade make mre sense here, but the squad costs 30mp more then grens and have default camo and much better rec acc, stat wise they are already cost effective as they are, I'm glad you understood opportunity cost quickly and I don't have to argue about that
No they not cost effective as they are even penal and Riflemen are more durable cost about the same and have allot more DPS mid to close.
I've already explained cost effectiveness, but I can address AT partisans as well-its a 4 men squad with 0 rec acc bonuses against armies with weapons that have DPS scaled to fight 5-6 men squads. They do not start with AT nades, you want AT nades on them, you need to research them, its not their default utility.
And finally, shreck, yes they do start with it, but their rifles are utterly useless and they could just as well throw bad words at germans, so you're paying 270mp for single shreck on squad which is 50% less durable then usual soviet squads(which means its squishy as F and reinforces for crapload) and doesn't even have all of its utilities by default.
Storms getting same treatment as partisans would mean you'd have 2 squads instead of single flexible one.
AT partisan are meant to ambush vehicles not infantry and the target size not very important when fighting tanks...Further more the contrary to other spwaning units they pay NO premium for coming out of buildings, and compared to 25% premium S.T. pay that is quite a difference.
Ost do have extremely cost effective inf, even pgrens are cost effective, which we've seen most recently on ESL(inb4 the usuals with denial jump in). Thing is, ost isn't reliant on any kind of elite inf, they have storms, but they don't need them and for the stats and what they do, storms are pretty well balanced.
0.75 rec acc, gren vet, pg weapons with useful abilities(though StGs>shreck here, no question)
They are useful, but they are also muni sink, they aren't meant to be used like allied(soviet) elite troops as they aren't main line inf(however they can perform like one).
I got the feeling that people want them to be some kind of ost obersoldaten-that won't happen.
Ost do not have cost effective inf because they bleed far too much both by reinforcement and by squad wipes...
Your analysis is based in flaws and thus comes to wrong conclusions...