Counterattack T1 vs Assgren

I have been trying different commanders that seem to synergize with T1. Counterattack seems decent with Shocks/Mother Russia/KV1. Recon planes are always useful and B4 depends but can be extremely good. I like KV1 vs OST 1v1 due to it forcing an escalation to BP4 for more consistent performance in tank fights.

Started with engi/car and noticed he had 2 pioneers. Most likely meant he was going for T1 skip then I saw ass grens so I knew he was skipping. He attacked the cutoff early and I stalled him with penals and retreat before any model loss to try and reduce MP bleed as much as possible. While he is at my cutoff I use clown car to get both his cutoffs which forces him to back track to recap. I push him back with Penals and recap my cutoffs.
I lose my Clown car when I try and tell it to go somewhere else and it decides to do a 360 degree turn. I then see he rushed out a 4min Pgren so I am at an inf disadvantage since I know scout car is coming so one of my Penals needs to be upgraded. He rushes to cutoff my fuel again but I finally have 2CP so I call in Shock troops. At the same time I send 2 penals to his cutoff which slows down his reinforcement of PG. My Shocks end up wiping his PG as they retreat but I thought they had gotten away so I held on to a Penal on the retreat path but didn't see them. The loss of this PG really messes up his strat since I can now bully him with Penals as shocks close in.
I rebuild car to go Scout car hunting, lose it but get the scout car abandon. I rush to it with my infantry so make sure he doesn't repair it but he accidently destroys it as his MG opens fire.
At this point he gets really passive, so I finally have time to save for base healing and build tech structures while gaining map control. I don't want to build a T70 since I am pretty sure he is trying to get a Stug E out as soon as he can. I send my engi to the mid and see what he has been doing. He built some MG and to defend middle while he built bunkers and S-mines to lock it down. Going to have to deal with it but dont have enough munis yet to take it out at once. He ends up building another PG which I bully with a Penal and Shock trooper, wiping it with a retreat nade. Felt great since I always mess that up. He gets MGs on his bunkers and moves his MG42 out to flanks, which lets me push with a Shock trooper for smoke nade while Penal comes in and satchels both bunkers.
He counters with his Stug E which forces me to retreat and lose Penal through S-mine field. Due to my fuel control I have been able to save up for KV1, I use it to bleed his infantry but his AT gun forces me back. At this point he seems to be making more and more mistakes and starts to blob more so I decide to make B4. He attempts to go for left side map and gas I stall him long enough to finally build and shoot gun, forcing his MG and 3rd PG squad to retreat.
He builds and Ostwind to counter my recon overflights and help infantry fights go his way but it is too late. I have 2nd KV1 built and catch him clumped in the middle. I bait him causing him to get stuck on the bridge and my B4 wipes both AT guns, destroys Ostwind and forces his PG to retreat or face getting wiped. He drops GG.

Despite the rough start I knew I had I could mess his gameplan up if I got KV1 out.
Losing the PG so early really messed him up, he seemed to get a lot more passive as the game went on. My guess is he had a specific army composition he wanted and didn't want to deviate.
Skipping MG and attacking with 2 Pios and 2 Ass grens really caught me off guard but I think getting an MG after the 2nd ass gren would have let him lock a side down instead of teching and going for the PG. It gave me a chance to catch up adjust what I wanted to do.