Well that painting on the tower is the herald of Bremen, my hometown. A slightly changed version of it is on every bottle of Becks Beer, brewed some hundred meters up the river Weser from my house. Does somebody know if that painting on U4 is historically correct?
Bergen is a city at the west coast of Norway, I belive you can Utilize the port facilities in game sometime after the german attack on Norway 9 of April 1940.
