IGN has released two new videos on the map Azura Gears of War 3 which will be contained in the additional content called "Horde Command Pack" out on 1 November. In the two movies we see is an overview of the map in Horde played several clips that show us the new upgrade: Command Center, the Silverback with the rocket launcher and then the bait represented the living dall'Onyx Guard.

Gears of War 3 - Gameplay Azura
Gears of War 3 - Overview of Azura