Adds massive cargo ships to the game, that function similarly to trains. Also adds deep sea oil, oil platforms, tanker ships, train bridges and other water based content.
It would be useful to have a lighter type of boat that accelerates faster but does not have as much inventory space as the cargo ship. The main use I see for this is to deliver supplies to overseas outposts.
Also would be nice as a quick way to get to your outposts. Right now I ride cargo ships as they pass and spend the time in my map blueprinting. If we're requesting new types of ships, I'd really like a crossover with the Vehicle Wagon mod to load up my (fully loaded and fueled) tank onto a ship to take across the sea. A ferry, perhaps?