I like the invasion of Norway. Last time I was west of norway patroling north to south and backwards. You can literally FEEL, that somethings is going to happen even if you don't know about the operation itself. Incoming enemy and friendly task forces makes you think that soon the hell will rise along whole costline of Norway.
The tension is very high, the way I like it
Forgot to mention that all kind of U-boats arrive to participate in action too!