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The following is a list of maps playable in Metal Gear Online. There were five playable maps in the starter pack which came with Metal Gear Solid 4: Guns of the Patriots.

Version 1 Edit

Image	Map Name	Description
	City Under Siege	This stage features a wide open playing area and intermittent skyscrapers. Make sure you memorize the layout of the labyrinthine passages. The top floors of buildings are perfect sniping locations.
	Mountain Top - Krasnogorje Mountain	This stage also appeared in Snake Eater's main story. It features the man-made trenches carved into the mountainside, as well as crawlspaces that connect the trenches with the storage shelters. Memorize the area's topography. That knowledge is the key to victory.
	Ghost Factory	Focus your attention on the abandoned factory in the center of the area. You'll need to make use of all three floors in the building, as well as the ducts that run through the basement. Develop a team strategy that makes maximum use of the stage layout. Take note of the cover objects in the environment such as bushes, crates, and trucks.
	Lost Forest	Focus on occupying the high grounds located on both sides of the area. They're ideal sniping locations, although you won't see the center of the area due to low visibility. Execute a strategy flexible to your situation.
	Killhouse A	Bushes provide the only cover in this area. However, you might stay hidden if you keep low in the corners. Take a look around and you'll see an abundance of cardboard boxes. Perhaps it's time to incorporate your own box into your strategy....
	Killhouse B	This stage features a two-story building with interlacing passageways. You'll need to adjust your strategy depending on the floor where you're fighting. Be sure to use the ducts in this area effectively.
	Killhouse C	This area features four small rooms connected by hallways that form a square. Crates are piled up in each room. Depending on your situation, you might use them for shelter or strategic elevation. Narrow passages connect the rooms in this area. These are ideal locations to set up traps.
	Svyatogornyj East	This stage appeared in Snake Eater's main story. It features the cabin barracks as well as the nearby jungle pathways. You'll need to change your strategy depending on whether you're defending or attacking the barracks. The gun turrets found while playing the main game are absent, but you can still use the trenches.
	Graniny Gorki Lab	In this stage, you can enjoy fighting in one of the few indoor battle arenas from the main game. Know your environment. A quick judgment call at a critical moment can mean the difference between victory or defeat.
	Pillbox Purgatory	A two-story building structure and its basement comprise this area. There are a total of five exits. You'll tend to encounter enemies while moving between floors.
	High Ice	Two elements stand out in this area: a snowy environment and lower visibility due to nightfall. Foliage covers most of the large playing area. You'll find trucks and crates located in the central open area. You'll gain a tactical advantage if you acquire the Night Vision Goggles. Use them wisely.
	Brown Town	Buildings appear occasionally in this huge area. The second floor locations are perfect sniping nests. Dust clouds lower your visibility. Victory hinges upon your team's strategy, communication, and overall teamwork!

Version 2 Edit

Starter Pack Edit

Note: Because this was the only set at the time Metal Gear Solid 4 was released, the Starter Pack maps are the only ones to have officially-given strategies (via Piggyback Guides Metal Gear Solid 4 strategy guide).

Image	Map Name	Description
	Blood Bath	A small and crowded map with both above ground and underground options for close to medium battles.
	Groznyj Grad	The now abandoned weapons factory that housed the Shagohod during Operation Snake Eater. Contains open areas offering unobstructed views as well as indoor and rooftop locations.
	Urban Ultimatum	Negotiate buildings of varying height in this urban jungle. This map is a remake of the classic map, City Under Siege.
	Midtown Maelstrom	This Middle Eastern battleground features avenues crisscrossed with alleyways, and is based on an area from Act 1 of Metal Gear Solid 4: Guns of the Patriots.
	Ambush Alley	A corner of a war-shattered town littered with obstacles, its central intersection branching off into side streets.

Gene expansion Edit

Image	Map Name	Description
	Coppertown Conflict	City of Sorrow Wide streets, and rooftop areas. Suitable for close to medium-range combat. This map is a remake of the classic map, Brown Town.
	Tomb of Tubes	Underground Waterway An intricate labyrinth of combat.
	Virtuous Vista	South America Power Station A natural terrain. Suitable for medium to long-range combat. Is based on the Power Station in Metal Gear Solid 4.

Meme Expansion Edit

Image	Map Name	Description
	Forest Firefight	Forest Zone A map with limited visibility and lots of blind spots. Suitable for medium-range combat.
	Winter Warehouse	Abandoned Factory A 3-story building with rooms and connecting passages. Suitable for close to medium-range combat.
	Silo Sunset	Nuke Silo Buildings of varying heights and underground passages. Suitable for close to medium-range combat. This map is based on the Silo Entrance level in Metal Gear Solid: Portable Ops

Scene Expansion Edit

Image	Map Name	Description
	Hazard House	The Palace An enormous 3-story mansion. Suitable for close- to medium-range combat.
	Ravaged Riverfront	Clock Tower Made up of underground, above ground, and underwater areas. Suitable for medium- to long-range combat.
	Outer Outlet	Industrial Wasteland Made up of buildings and underground/above ground areas. Suitable for medium- to long-range combat.
	Icebound Inferno	Aged Snowfield Taken from the Comm Tower section of the famous Shadow Moses island, this map is made up of Comm Towers A and B and a vast snow field in which it is almost impossible to see through the blizzard. Suitable for Long range combat. Note: Was not included in the original release of the Scene Expansion. Rather, it was a downloadable content bonus.

Unreleased mapsEdit

There were also three unreleased maps that, owing to Metal Gear Online's discontinuation, were found in the Metal Gear Arcade, and were later commented on via a panel release by Kojima Productions.^[1]^[2]^[3] One map, Desert Duel, was a textureless desert area, another was a textureless town that was either intended to be an adaptation of the Town area from Portable Ops or Millennium Park area from MGS4. The last one was "Lethal Leviathan", which from the content and name, is likely intended to be an adaptation of Arsenal Gear and/or Outer Haven. Given the amount of detail within Leviathan, it was likely cut very late in development.