Michael,
I have just run your mission. In 50 minutes I have learned more about your great seaport of Hamburg than I would in months of study. You really should post the mission on the "missions" thread, it is, in my humble opinion, one of the nicest and most informative missions yet. It should be regarded as a must for all players. It is many, many years since I last visited Hamburg when I was at sea. In the 1950s, at a point lower down the river, on the north bank, there was always a band which played the National Anthem of the country of each ship which passed on it's way upriver. I think the band was stationed in the grounds of an inn or a pub. I should not think this still occurs as I am talking about 50 years ago. Anyway, Michael, thanks once again for a delightful 50 minute trip.
Angus.