How to Play the Call of Duty Games By Release Date

1
Call of Duty (2003)
2
Call of Duty 2 (2005)
3
Call of Duty 3 (2006)
4
Call of Duty 4: Modern Warfare (2007)
5
Call of Duty: World at War (2008)
6
Call of Duty: Modern Warfare 2 (2009)
7
Call of Duty: Black Ops (2010)
8
Call of Duty: Modern Warfare 3 (2011)
As part of Season 6 of Call of Duty: Warzone, The Haunting event comes as the usual mid-season reinforcements. The Operators will travel to Al Mazrah to investigate anomalies that have occurred after an incident called Hellmouth.