Neither the single-player nor multiplayer modes of Call of Duty: Modern Warfare 3 are playable at this year's E3, but Activision is running a demo for a brand new version of co-op that Infinity Ward is calling Spec Ops Survival. I say Infinity Ward is calling it that (and they are, because that's its name), but given that this is multiplayer, it was probably developed in conjunction with Sledgehammer Games and/or Raven Software. Activision wasn't completely clear on just how the co-development work is being divvied up, so we're not sure who to credit for it.

Whoever made it, Spec Ops Survival is a brand new mode for co-op in the Modern Warfare series. I was told that Spec Ops missions are still available (though those weren't being shown off at all), but Survival is a new mode that can be played on any of the maps being used for actual multiplayer. The map used in the demo was called Dome, and after a quick breakdown of the mechanics (it's Horde, basically -- waves of enemies show up on the map, and you and a partner have to take them out) my Activision cohort and I went to work.