So what would happen with your noble if the ship sinks at sea? And if he's a hero? What about storms? Or food and water onboard?
I like the idea as in: it should definately be part if BM in a ideal future.
But the whole concept would create an entire new layer to BM. So many new factors ...
Instead of creating a whole new layer, perhaps just adding 'travel by sea' would be an option. In any given region on the coast (with a constructible harbour), units can (dis)embark. You can travel straight to another controlled region along the coast, at a reduced travel time. Disadvantage would be that storms, pirates and the like make the travel estimation unpredictable.
Let's say it's faster 2/3 times, but that 1/3 can cause a major delay.
+ coordination in a storm is non-existant, so large armies would still have to go by land
+ only travel within a realm, or to an allied realm is possible.
How about that?
