Call of Duty: Modern Warfare 3 and Warzone are bringing in the holiday spirit with the Santa's Slayground Holiday Event. Players will be able to experience new winter-themed versions of Shipment and Highrise alongside the Urzikstan Warzone Map. Holiday-themed zombies, including an undead Santa Clause, also make its way to Zombies alongside limited-time Holiday game modes for Multiplayer. The Santa's Slayground Holiday Event for Call of Duty: Modern Warfare 3 and Warzone begins on December 19.