Unfortunately, some of the descriptions a bit too blurry to make out. We can see "Invade Hanger 18," "Attack at the Drive-In," and "Escape the Hazard" fairly clearly. The other two are only legible for their largest print: "Silo," and "Zombies."
This could all be a well-made hoax, but it bears a striking resemblance to a flyer that leaked Escalation DLC details a week before Activision confirmed the pack. If the DLC leak is legitimate, it will hit Xbox 360 first as part of a deal with Microsoft, as the other packs have.
We've contacted Activision for official word on the DLC, and will update as more information becomes available.
[Image courtesy of DigitalWarfare247.]