Call of Duty fans on Xbox 360 have been given a chance to help U.S. military veterans. Money made from the purchase of Call of Duty: Modern Warfare 3 avatars on Xbox Live Marketplace until December 16 will be donated to the Call of Duty Endowment.

Over 30 items based on the Call of Duty: Modern Warfare series are already available in the Avatar Marketplace. In honor of the continuing partnership with the Endowment, two additional Modern Warfare 3 Avatars- one based on American Special Forces and the other on Special Ops Juggernaut- are available now as well.