I finished my first patrol in the career campaign. Must I now realy wait 28 real days before I can start my second patrol?
why 28 days ?
battle in the mediterranean Silent Hunter III
You don't have to wait 28 real days, but the campaign skips ahead 28 days. If you use Silent Hunter 3 Commander, you can adjust this time-in-port to your liking, or have it set to a random time.