Brown Town is a map included in the first version of Metal Gear Online on Subsistence. It is a large town area. It is later ported on the second version and renamed Coppertown Conflict.

It containedd two underground halls to the north, a loading/storage area and an office area to the northwest, a garage just southwest from the western entrance to the first underground hall, a store immediately south of the garage, a main street immediately south of the southern entrance to the first underground hall, a second level office near the office area, an open area to the easternmost point, and a theater to the absolute south of the map.