The latest entry in the Call of Duty franchise is now available, with Call of Duty: Vanguard officially releasing on November 5. Call of Duty: Vanguard brings the Call of Duty series back to World War 2, typically a popular setting for multiplayer shooters. However, it appears that Call of Duty: Vanguard may not have resounded with fans as much as Activision and Sledgehammer Games were hoping. A report out of the UK says that sales for Call of Duty: Vanguard are the worst for the franchise in over a decade.