This is Tsunami Redux made by TheWorms, remake of the Original Tsunami map in RA2

from the official description:
Features:  Each player will start off on his or her own private island (4 total). This is a great map for those that like to have long naval battles.
Tip: Money will be consumed quickly, make sure you monitor your resources and don't over spend. It will be crucial to build Naval ships immediately and secure the islands perimeter.

Notes:
-Oil Derricks are located at the center of the map.
-Expansion ore nodes are protected by creep dolphins! Be sure to kill them first.
-Some dry docks at each corner of the map to help naval repair
 