Mason turned into a Zombie is myth and theory about Alex Mason became into a Zombie.
Description
In the promotion/cover art of Call of Duty: Black Ops Rezurrection and Call of Duty: Black Ops Zombies, there is a zombie who is in sitting in the same way and on the same place where Black Ops guy sitted.
Since ther eis a lot of theory/rumor about the Black Ops 1 guy is actually Alex Mason himself, people also theorized that this character is zombiefied version of Alex Mason/Black Ops 1 guy.