EDIT: To reply to the gren disadvantage sentence.Grens cost 240 and their purpose is to hold the line
Please eleborate how you can hold the line against tommies\rifles, without HMG support (260MP) or having ratio 2to1(240MP+), early on. In case you ask, point is being you are froced to have x2 MP more of units in a one place in order to hold back x2MP less worth of units. Rifles\tommies cost you 280\270mp but you need 480mp worth of grens to force them back.
Vet3 grens with LMGs mow down all infantry when they are behind yellow or green cover.
And? Upped vet3 Rifles\Tommies also mow down inf, LMG vet 3 rifles mow down even faster.
On the other hand, OST has grens and pgrens. Grens are defensive and pgrens are offensive.
In which way PGs are offensive? Shocktroops or Mech.rifles are offensive, PGs are versatile, thats why they are good in first place.
Because they can adapt, they can either outdamage you in cover on mid range and then charge, or charge strate of the bat depending on the possitioning. They have all the tools to fight pretty much any kind of inf, be it long\mid\close range ones and they have enouth fire power to stay victorious if played right.
Grens on the other hand, even if played completly right and how they are intend to be played, still will most likely lose.
Mainline they have volks which beat rifles long range and struggle against tommies on any range (before the upg).
Yes, thats the point, more expensive rifles can lose to cheaper volks if played wrong or charged badly. More expensive Volks can lose to cheaper Cons, if they allow them to get close without beating. On the other hand Grens cant provide enouth of a DPS to realistically force away pushing rifles, even if its a piss poor push, the same way grens cant realistically get to the mid range to beat tommies.
Pretty much the only way grenadiers can somehow win engagement is if your enemy makes a very stupid mistakes.
And Vanilla volks can beat vannila Tommies at close range, point is being that you cant realistically get to the close range, if its not from sight blocking ambush.
That's why with OKW ...
And thats why soviets are generaly showing better results vs OKW, rather then ost showing against WFA (without utilizing the cheese like osttroopens, ass.grens, VSL) because match up vs OKW while being harder (in terms of inf vs inf play), it plays almost the same as vs Ost early on and doesnt contradicts with soviet faction design.
Ost on a at least semi competitive level forced to avoid intentional desing and either rely on fast tech into T2 with double MG42 (in teamgames mostly) or chose commanders which pretty much compete faction early game changers.