Help identify this song

The lyrics are difficult to hear because of the commentary, but I would like to know the name of this song.

http://www.dailymotion.com/video/xum5uv_black-ops-2-zombies-ranks-new-system_videogames

Elena Siegman - Lullaby For A Dead Man http://www.youtube.com/watch?v=j6b1_QSXs2Q