I have tried this, but if i go tier 1, by the time I have a penal squad out they have already cut me off, so it can be as long as 8 to 10 minutes before I have T70, by then its already useless, guards are ammo dependant and being so massively outnumbered due to penals securing fuel for T70 is hard enough without trying to secure ammo as well, but often its a game of trying to dislodge them off my cut offs with penals, you pretty much need three before they become genuinely effective, yes I try to cut them off also but their vast numbers make that pretty hard, they havent had to build a tier building at the beginning with the time and expense that takes, I have had a better time with four cons than when I have done penals, I only play 1v1 auto.
How strange. I play only 1 v 1 auto as well, and OKW is the easiest matchup for me. I find Ost much harder to deal with.
The matchup tends to go like this:
OKW starts off either capping their own stuff or going for aggression. If they go for aggression Clown Car with Penals will wreck them hard. Raketen is the usual response, which is not only very RNG dependent but also reliant on player micro and positioning.
If you lose Clown Car early without inflicting much bleed and/or taking their cutoff, you're in trouble.
Luchs comes around 7 to 8 mins, Guards are the appropriate response and will bleed you, so you need to play defensively.
T70 comes out around 9 minutes. Shouldn't arrive later than 10. Use Penals to screen for raketens and T70 will do the rest. Some OKW players react by going Puma, which usually means no P4. That's perfect because OKW P4 is so good vs infantry, and Guards gain easy vet from the Puma, and you want 2 or 3 vetted Guards by the time Obers come out.
From 10 mins onwards the T70 micro is key. Guards will lose initially to the low cost Volks, but Guards have insane Vet bonuses and Volks have trash Vet, so using the T70 well will transition you into the period of Penals + Guards dominance.
10 mins to 20 mins is usually where I win the game as Soviets. Late game gets harder once he transitions into T4 and multiple Panzer IVs, and especially when his Obers start hitting vet 2 or 3. Not having sandbags or hmgs will often cause problems with mp bleed as well. Being able to
In the late game, defensive play with the T70 (which gives crazy vision) should allow you to grind out a victory. If the OKW player is stupid/noob enough to get a King Tiger, the Soviet player wins instantly.
I once had a 300++ VP to 50 VP advantage, with multiple max vet squads and two P4s at high vet, so I decided to taunt my opponent by dumping all my resources into a King Tiger. That allowed my opponent to instantly win the game because I no longer had resources in reserve, and effectively only had 74pop cap vs his 100 pop cap. His SU85 also instantly became Vet 3, and my Sturmpioneers no longer had time to repair the P4s.
Basically calling in a King Tiger is akin to losing two Panzer IVs at once, while blocking up more than a quarter of your pop cap. It's the ultimate "I lose" button.