This might be the most annoying map you have ever played.
You can build on water and all units can move on the water. This map is a test of a theory on rule changes to see if I could make units walk on water. Also, I wanted to see what it would be like to sail ships right into an opponent's base. It works, sort of. The land units have the faith of Peter and squirm around constantly until they find land. They might even wander all the way across the map so it is very difficult to control defensive positions. I thought perhaps this could be an added challenge but it is really just pretty annoying, imo. However, there is a mathematical chance someone might enjoy it so here it is.