I am amazed by how helpful your answer is and that you took the time to watch to replay and write such a detailed answer.
You are right about the Sturmpios and that I should equip them with detectors against Soviets. There were 1on1 games which I basically lost because of demo charges and mines.
I also don´t know why I overlooked the Focus fire ability of the Command-Panther. It seems to be very strong. Even seems quite OP. I really missed out on that.
I also noticed the problem of leaving team-weapons behind because the enemy can just get them back. I usually feel like I dont have the time to destroy or steal them or that is too risky to do so. I will need to work on that.
Please let me know what could be improved. What are the biggest mistakes I make? I already know that I need to take care of my Units better (healing, earlier retreats).
So I watched some replays and noticed that good COH2 players play OKW very differently to me and wondered why. Frankly the way they play makes little sense to me.
Usual build order that I observed: Kübel(1-2x), Volksgrenadiers (2-3x), AT-Gun -> Tech 1, Upgrade as retreat point and healing upgrade, ISG (1-2x)-> Tech 3, Panther
My usual build order depending on how opponent plays: Volksgrenadier, Kübel, Volksgrenadier, Volksgrenadier -> Tech2, MG 34(2x) Luchs, AT-Gun, Stuka(situational) -> Call-In Commandpanther or Call-in Ostwind - > Tech 3 if I have lots of fuel and game drags on.
I have simplified the build orders a little because a lot obviously depends on how your opponent plays and how the game goes in general.
Why isn´t it better to save the fuel for Tech3 and get an early Command Panther? Why isn´t it better to get Luchs and put pressure on your opponent instead of playing defensively with ISG´s?
I don´t have a very impressive record in 1on1 (a bit above 50%)so I don´t claim that the pros do it wrong but I really struggle to come up with the reasoning behind their style of playing OKW. Especially strategies that involve getting tech 3 truck and then using command-panther call-in.