User blog comment:Damac1214/James. C Burns teases "Zombie Breakdown" video, Multiplayer, and other "Intel" for Call of Duty: Black Ops II/@comment-201.53.134.206-20120903005546/@comment-1263839-20120903204211

That applies to Half Life 2: Episode Three and Team Fortress 2, not Left4Dead, Left4Dead 2, Portal or Portal 2.