Xbox Live subscribers will get the first taste of the Call of Duty: Black Ops Escalation map pack when it launches next Tuesday. As we've said before, the DLC features four multi-player maps—Convoy, Stockpile, Hotel, and Zoo—and a star-studded zombie level, Call of the Dead. The maps look badass, and Treyarch finally put together a trailer that wasn't jsut endless shots of devs at their keyboards; this one features a Call of Duty diner serving up its 5-Map Combo. Hope it comes with cheese fries. We love cheese fries.