If you must know...One of the voices is everyone's favorite Brit Shaun and the other is William, the guy Lucy is always emailing and the overseer of their unit. Juno taking over Desmond's body at the end of Brotherhood and killing Lucy caused him to go into a coma, and they throw him back into the Animus to try to restore his mind so he doesn't become like Subject 16. The majority of Desmond's story in Revelations is him trying to piece his mind back together. Instead of The Truth miniquest, you get to do a First Person puzzle platform that relays the entire backstory of Desmond's life from his childhood all the way to the present.