Concept art for a multiplayer map for Halo 4, called Warhorse, has been released by 343 Industries. Warhorse is a working title for the map, which is set on a mining ship. The stage will is described as being symmetrical, but will have unique landmarks, and may be favourable to players who like close quarter battles.
Warhorse will also have a number of paths and has been designed in such a way that, “one team doesn’t have an advantage over the other based on where they spawn or what part of the map they control.”
You can read more about Warhorse and download wallpapers of the art from the Halo blog.
Source: Halo Blog