'Call of Duty: Warzone' Zombie Threat Expands to Prison as Possible Nuke Event Looms On 3/11/21 at 1:24 PM EST Call of Duty: Warzone rumors suggested there may be a nuke event on March 10 or March 11, and, while Verdansk is still standing after recent events, big changes are due to arrive within the iconic arena. An emergency post on the Call of Duty blog suggests a new threat has emerged at Prison. 'Call of Duty: Warzone' seems to be prepping for a map change, as zombies have made their way to the Verdansk island. The Prison isn't looking great today. 'Call of Duty: Warzone' is available now on PS4, Xbox Series X|S, Xbox One and PC.