Talk:Anton Gersh

Does the voice belong to Gersch?
Now I know most people come here for their Zombies information. Not wanting to mislead anyone, I want to know something. Where does it say that Gersch is the voice at the beginning of the game, and throughout the node puzzle? Is this just an assumption or is there something by Treyarch or a radio message stating the voice belongs to Gersch? If this is an assumption, it does NOT belong in an encyclopedia.