The gamemap is larger and at least in the first mission resembling the West Indies with its chain of islands and with the right names in the right places. There is a half hidden map in the sense that untravelled area is not shown as water. Still islands are to be found by outer contour and name but the prots can't be seen. The islands are flat and uninteresting. The sea is OK and has some life.
Ports are all the same.
Ships are somewhat OK but smaller ships may be bigger than bigger ships. Ship movement is OK and well adjusted to the wind situation. Sounds are OK both when it comes to fighting and background. You can play it over and over and never play it the same twice. Definatly one of the great games that no one will ever find out about.