Ocean planets + this + sports = fun.
A giant mesh slightly larger than the surface would encompass the planet, acting as the ocean. No way to remove the ocean, its just there.
If you're in the ocean, you of course get ocean-esque buff/debuffs like "Anakin's Sand" and "why is my ship sinking."
Then we get watercraft, and then we put guns on them.
There are few things I want in this game, but this is definitely on the list.