Expand your Halo Wars experience with the Historical Battle Map Pack Add-on. These new maps highlight key turning points in the epic war between the UNSC and Covenant forces. The maps include: Blood River – battle a single opponent over a treacherous natural chokepoint; Barrens – engage your enemy in the midst of the Flood; and Memorial Basin – two vs. two team play in one of the bloodiest battles in Halo history. There are no refunds for this item. For more information, see www.xbox.com/live/accounts.

Experience Halo Wars in a whole new way with the Strategic Options Game Add-on. Three new game modes will require players to re-think their entire strategy and approach to the game. The modes include: Keepaway – capture the flag style game; Tug of War – who can field and maintain the strongest army; and Reinforcements – adapt your tactics as you are granted waves of troops. There are no refunds for this item. For more information, see www.xbox.com/live/accounts.