I think sturmpanzer summed it up pretty well (agree with him in everything, not going to write it here again), here are some of other thoughts.
Choose commader sooner. You should have used stugs e with tiger if you wanted to go that way.
Also prostruppens and sniper into 444 and pak into fast oswind (your fuel is easily overwatchable with 1 hmg and 444 and you can allow to spend 200MP for 50 fuel because you are bleeding him with sniper and ostruppens are dirty cheap). Fast oswind backed up with 2 paks is deadly against USA because it will always come faster than sherman if you execute your play well.
Squadwipes. You lost many squads mainly because you didn´t have plan and haven´t pushed together AND you didn´t take into account kholodny RETARDED retreat patch. If you are near strategic point that is between south VP and his house they you won´t run throught your munnition but throught enemy mid VP, often resulting squadwipe. Keep that in mind.
Your 222 and p4 play was horrible. We all can admit this. Your 222 danced in front of quad, I didn´t knon what you was planning here. Once you saw quad, retreat with it, wait til he extends and then attack with 2x222 from flank. He wouldn´t have dived to kill your 222 fearing either gren/pak combo or teller.
Also p4 died too early. Jackson is squishy as hell, once your pak was vet 1 you could have stunned it, land second AT gun shot and kill it with p4. You don´t have to dive once you get tank, slowly bleed him and wait for his mistake.
And here I have something you may like - early game thoughts with pictures:
It´s useless to make cover near your cut off because cover only exist up to 10 range then is negated. So you only use cover when you already have squad there, not when you advance (you won´t have squad near your cut off when he attacks it and once he is near that cover, it serve no function except giving him advantage). Thats why I recommned you not to building cover there, but wiring green cover nearby so he will have harder time holding your cut off. If you hovewer want too much greeno cover there, build it behind that cart, so enemy still have yellow cover and you enjoy green cover while you are definding cut off against attacks from your fuel.
Munnition point cover
I suggest moving cover more to right, so enemy cannot use it. As you can see right now, enemy can position his squads into your cover. If you place cover there, he won´t be able to use it (because once he see your squad approaching, it will already be range <10 and so cover serves no function, meaning he is not in green cover, but in red cover). If enemy dashes to your cover, you will still enjoy no cover, while he will be having red cover (because at 10 range or lower cover is negated [except house cover]).
Mid VP play
Here you should have rushed enemy house with grens and give him pain, while he try to grab it back (USA lack flamer) while second squad should have capped VP, wired tank as I painted there and maybe help with defending house
Early game MG play
You already supressed that riflemen earier and had pios nearby. Instaed of capping strategic point, you should have closed with pios to rifles (as long someone is firing at squad, its unlikely he will lose supression status) forced him to retreat, then capped VP with pios and strategic point with MG. This would have saved mg health
Countering church garrisons
Kholodny church have only 1 window on that side, and also only 1 window on other side. Thats why I think you have to go into green cover and then right with church garrison because then only 1 man will be firing at you. If you however fire from house, you have only 1 window, and he is firing at you from all right windows there (cca 4-5 windows).
Also wire green cover on other side of church so he cannot do the same to you and will have to find other way to flush you out.
Strategic point I talked about
Here you can see retreat path I already talked about. Once again bad sandbad placement. As you can see, there are green dots on other side, meaning enemy can use it as well. I recommend you moving it to position I draw there, so only 2 members can enjoy green cover then. Also wire that small retreat path as I draw there
Thats all. Hope this helps you