Cut Halo Online levels

Due to the cancellation of Halo Online, several multiplayer maps and a single-player training scenario were cut from the game.

Tutorial
Named  in game files for the MS30 Halo Online build, this level would have been set on Anvil Station, and serve as an introductory tutorial for new players starting the game. Several pieces of released concept art for the level indicate the level was to involve a shooting range and Covenant automated turrets.

Untitled city map
An untitled city map was late in development before the game's cancellation, set in the upper floors of a skyscraper. This map's visuals match the description of the  map described below, and bear some resemblance to the layout of the maps Gephyrophobia and Narrows.

Drydock
Named  in the MS30 build, this map's description indicates it would have been set on High Charity. Several pieces of released concept art, shown below, were named "drydock" and may be for this level.

Lockout
Named  in the MS30 build, this map was presumably a remake of the Halo 2 map Lockout. Concept art has been released for this map, depicting a possible setting similar to the map Haven on Requiem.

Skybridge
Named  in the MS30 build, this map was to be set in Seongnam, Korea. This map matches the visuals for the untitled city map, though any connection between the two is unknown.

Waterfall
Named  in the MS30 build, little is known of this map. Several released pieces of concept art with the name "waterfall" in their filenames have been released and likely correspond to this map, shown below.