» Thu Sep 22, 2011 2:32 am
Its speculated that perhaps he wears the mask to block out some of the radiation in the divide since it does give you +50 resistance. As for the eyes, its also believed that his exposure to radiation has over time caused his eyes to change and take on an "eery glow" effect.
I can't really think of any other reason why he's like that. I was expecting him to have the same appearance as he did in the concept: http://27.media.tumblr.com/tumblr_lm72dmFtTg1qbnosso1_400.png Was a little disappointed in his final appearance in the DLC but hey its not like it ruins the DLC itself or anything. They still did a fantastic job on it.