We have to wait to have hovers, or vtols to move onto the other, shore, island and anything divided by water.
What if, a unit could build bridges from segments, like the military does on rivers.
Each tile could be filled with a sort of combat bridge. Each part would cost. Each tile part could be destroyed. If we were to make a bridge three tiles wide, it would nicely connect in the centre.
It would have smooth surface, so hovercrafts could fly over them with no problems. It would be possible to build on this bridge constructions too.



