That is correct. Soviets rely on combined arms and unit abilities to defeat Ost, whereas Ost relies on excellent individual unit micro because of their fewer units. Ost abilities generally revolve around preserving units for longer periods.
I really enjoy playing as Soviet right now I can easily take down almost any tank with 2 guards squads and a shot or two from an AT gun. Button is expensive, but you should be getting a kill on a tank for using it so definitely worth it.
I never have more fun then when I am Soviet and am laying down a mine field and luring my opponent into it before I spring the trap and destroy 3 or 4 squads at once. Quite fun, often gets the rage quit.
TLDR: Munitions = MP, spend yours take theirs!
With this I agree. As Soviet you must spend muniton on doing damage. As German you spend munition on upgrade.
And T3. Rememeber you on old CoH. T3 have nice nebelwerfers and pumas. This make T3 very atractive.