Mission 04 is now available on the highest difficulty level, Ace of Aces. Destroy the impenetrable Bartolomeo Fortress positioned in the natural defenses of Mt. Marcello. New Counter-Charge System! Allied reinforcements are rewarded based on the number of enemies downed during the time limit. Call in Allied Support, and destroy the enemy! New enemy ECM reported! A detrimental effect on missile performance has been reported, but details remain scarce. Stay alert! *Campaign Mode, Mission 01 must be cleared, and Free Mission Save Data available to use this download content. *Select Ace of Aces via Free Mission after download to play. There are no refunds for this item. For more information, see www.xbox.com/live/accounts.