Mob of the Dead (Call of Duty Black Ops ll) has connections to charachters in the Shadows of Evil (Call of Duty Black Ops lll)
The first map in the game mode to have a ending via completing the Easter Egg. An optional step based story driven side quest.
The characters in the game are designed to look like the actors voicing them.
The map was designed to replicate the real Alcatraz. Even having areas in which the escape of 1962 took place. The map can also be linked by Easter Eggs to the real break out. Even though the zombie outbreak takes place in the 1920s to 1930s.