Thanks, I would be interested in the list of changes you made.
I’ll post my complete setup in the House Rules section once I’m satisfied with it. I’m still testing it for now. As you said, it’s very similar to what you have done in the Pacific, but Europe is a bit different. The main difference is that I gave Germany control of East Poland and Baltic States, so the game starts a few months into Barbarossa (late summer or so), while the German still had momentum.