Xbox 360 owners will net themselves new Call of Duty: Modern Warfare 3 DLC later today, so long as they're premium members of the franchise's Elite program.
This month's content offers up two new maps: Sanctuary & Foundation. The official CoD Twitter account has posted a screenshot of the former.
The DLC should be available for Playstation 3 Elite members sometime next month.
Those without premium subscriptions will presumably get a crack at the content when the latest ‘Content Collection' arrives later in the year (first on 360, and followed soon after on PS3).