The following is a list of playable maps in Metal Gear Online 3.
A gas refinery on a harbor. The stage contains several multi-level structures.
A dam and its environs. The stage contains two regions either side of a river, with the dam and bridges connecting them.
African Jungle Outback. Composed of natural jungle and a desolate village. Also acts as the main hub for free play mode.
Soviet military base in Afghanistan. A hilltop base with a peripheral view of the surrounding desert.
A dilapidated desert palace based on Lamar Khaate Palace.
A stage based on Diamond Dogs' Mother Base offshore facility.
A rock formation with a surrounding encampment in the African plains.
Behind the scenes
Metal Gear Online 3 launched with five maps; Amber Station, Black Site, Gray Rampart, Jade Forest and Red Fortress. On December 20, 2015, along with regular design notes, a DLC was announced for Metal Gear Online. On January 12, 2016, it was announced that a new map based on Mother Base would be included in the upcoming DLC, with fans having the chance to officially name it via Twitter. The base was officially named "Coral Complex" on the Designer Notes' 11th volume. The name was derived from the coral reefs for both their resemblance to the ocean's surroundings as well as the default color for Mother Base being bright orange, which was reminiscent of coral reefs.