Ghost Recon: Future Soldier's Khyber Strike DLC pack landed yesterday, and Ubisoft has released the following trailer to show off some of the new features.
There's three new maps available for the game (four, if you include the Guerilla mode map), and a new multiplayer mode called Takedown. It's more akin to a classic death match, with team kills more important that capturing objectives, and it provides a nice change of pace from the more team focussed modes.