It has been spoken at San Diego Comic-Con, Isaiah Mustafa (AKA The Old Spice Guy):
[View:http://www.youtube.com/v/owGykVbfgUE&hl=en_US&feature=player_embedded&version=3]
He will be the voice of Clayton Carmine in Gears of War 3:
As well there will also be a Casual Mode...