Profile of wouren

Perhaps switch to units performing better in closer combat?

For example, if you want to tech T1 and get grens, equip them with G43s instead of LMG42.

You could also skip T1 and go straight for T2 and work off pgrens. The pgrens would also do well vs US armour if you have enough shreks to help your armour as an AT deterrent.

G43s are very good on this map. It is useful to have mobile AI that won't fail if closed in on. Pgrens are an interesting choice, I use them sometimes on this map. I would not recommend skipping tier 1. The only situation in which you could play and not rely heavily on grens is if you go mechanized, start off with 2 grens and then build an engineer and an assgren squad, then go pgrens. If you do this you will need to build a munitions cache.

I normally use M20s to lay mines and provide infantry support. It can chase squads but I prefer to use it in front of and behind infantry to act as a damage soak in early early game and support in early mid game. The best part is once the opponent finally scrambles to pull out a counter, you can drop the vehicle at base and use the crew as an AT squad and occasionally use it to lay mines.

The more I read and the more I play, I start to realize similarities to a certain Russian tactic. You need AT guns and mines to support a spearhead tank while a close-range elite squad hardens anti-infantry. Sounds like Shock Rifle Frontline Tactics to me.

If you don't want to veto (and vetoing is just fine), add the mechanized doctrine to your roster and switch from building grenadiers to panzergrenadiers asap. You want to deploy a maximum of 1 assgren squad. Throughout the game, you need to think about range advantages and flanks. You can also excusively spam grenadiers if you have really good micro.

I personally love this map as OKW, for evil, evil reasons. You can be freakishly aggressive with your medIcal battlegroup hq due to all of the hedges and walls. Pak-43s teach ISU-152s who runs the show. You can always outmaneuver British players trying to play defensively. You can even get 2 ISGs! I especially love multiplayer on this map, but you seem to be curious about the 1v1 case so I will cover that as best I can.
The first thing to realize is that you only need to hold 1 vp for most of the game. I agree with werewolf because OKW wins usually end with a surrender, not a drain out (that's not to say you should never take vps if you have the opportunity ). As long as you hold on to vital resources, you can roll out your forces. In 1v1s on minsk, I usually go for defensive doctrine or Luftwaffles for the lovely little pin machines sold at ostruppen price that go by the name mg 34. I t is easy enough to use your infantry to deny the enemy machineguns access to buildings along your front line that would deny you resources while setting up your own inexpensive anti-harassment machines. If an mg does get an mg in the middle building, use a bait volks on one side to get suppressed, then use a flanking volks to launch an incendiary grenade. You also have the option to ignore their mg and come back when you have tanks. I would personally advise against getting a flak HT but that's just me.