Are the technologies already advanced enough to create a mirrored water map? So that there is only a starting island and an ocean, and in the ocean, there are whirlpools leading to the opponent's side. Or create small islands with only teleports and a shipyard.
Hmm, I haven't worked with mirrored maps, but in theory, it shouldn't be difficult. Considering that water replaces the rock-block radius on maps with water. So, if you make a sufficiently low rock-block on a large map, you'll get an ocean around the island.