The Frontier Colonies map pack comes with two new multiplayer maps, Desolation and Overseer. Desolation is a parched desert world haunted by the remains of a failed colonization attempt. Overseer is home to military facilities overlooking a habitable forest valley. Each map is playable in both multiplayer and offline play for all game modes. There are no refunds for this item. For more information, see www.xbox.com/live/accounts.