Yin-Poole, Wesley (June 14, 2018). "Activision under fire for "community-splitting" Call of Duty Black Ops 4 season pass". Eurogamer. Archived from the original on June 15, 2018. Retrieved June 23, 2018. Henry, Jasmine (May 21, 2018). "Black Ops 4 Dev Responds to Story Campaign Complaints". GameRant. Archived from the original on January 21, 2019. Retrieved July 19, 2018.McWhertor, Michael (May 18, 2018). "Treyarch explains why Black Ops 4 won't have a single-player campaign". Polygon. Archived from the original on May 18, 2018. Retrieved July 19, 2018.Duggan, James (October 19, 2018). "Call of Duty: Black Ops 4 - Blackout - Review". IGN. Archived from the original on February 29, 2020. Retrieved November 7, 2018.Crowd, Dan (October 16, 2018). "Call of Duty: Black Ops 4 - Zombies - Review". IGN. Archived from the original on February 29, 2020. Retrieved Novembner 7, 2018.Sanchez, Miranda (October 19, 2018). "Call of Duty: Black Ops 4 Multiplayer - Review". IGN. Archived from the original on February 29, 2020. Retrieved November 7, 2018.Stapleton, Dan; Sanchez, Miranda (October 20, 2018). "Call of Duty: Black Ops 4 - Review". IGN. Archived from the original on November 2, 2018. Retrieved November 7, 2018.Yin-Poole, Wesley (June 14, 2018). "Activision under fire for "community-splitting" Call of Duty Black Ops 4 season pass". Eurogamer. Archived from the original on June 15, 2018. Retrieved June 23, 2018.
Yin-Poole, Wesley (June 14, 2018). "Activision under fire for "community-splitting" Call of Duty Black Ops 4 season pass". Eurogamer. Archived from the original on June 15, 2018. Retrieved June 23, 2018.