I was on Youtube when I stumbled upon the voice of Alduin shouting U-Force. I have only heard it at the beginning of the game when he shouts at our favorite executioner.

Its two videos that are 9 seconds long combined but it's pretty badass.

http://www.youtube.com/watch?v=ko8GMefm19k http://www.youtube.com/watch?v=H-gYFk3F5a0