Well, it seems to me that there really isn’t anything Germany can/should do against the UK directy until Russia is sacked.
It’s in Germany’s best interests to basicly keep UK out if it’s hair until after Russia’s gone. The way to do that is don’t let the UK get a navy. Keep the Luftwaffe just strong enough to do that duty. Unless the UK has a navy or an industrial complex either in Africa or India, they’re not much help, unless they’re just chuckin’ fighters into Russia for defense, which hurts Germany’s goals.
Just get rid of his Navy until you have Moscow.
Any kind of excessive aggression against UK before Russia falls is misdirected and usually wil just end up helping Russia push Germany back.
Also, if you KNOW they will attack Germany disproportionally then just go defensive. Just go fighers and infantry from the start and hang on and let Japan do the work. If they think that Germany can’t hold it’s own against the Allies when UK has no navy before Japan can take over Moscow uncontrollably, then it’s time to teach them the err in their strategy!