Call of Duty: Modern Zombies/Easter Egg Zombies

Easter Egg Zombies are special zombies found in the game. There are characters from other CoD games such as the following:
 * Simon "Ghost" Riley's Zombie
 * Vladimir Makarov's Zombie - Can only be found in the last campaign misson.
 * John "Soap" MacTavish's Zombie
 * Alex Mason's Zombie 
 * Khaled Al-Asad's Zombie
 * Yur's Zombie
 * Edward Richtofen's Zombie
 * Derek "Frost" Westbrook's Zombie