An anonymous source states that the upcoming Call of Duty: Black Ops 4, which was announced in March, will not have a traditional single-player mode. If this turns out to be true, it'd be a first for the main series of CoD games and infers that multiplayer and zombies will be the primary experiences at launch.
The rumor comes from a Polygon report via sources that have asked not to be named. One of the sources suggests that, with the decision to scrap single-player, the team may supplement with robust co-op modes. Another of the sources says Treyarch has focused on multiplayer and Zombies since deciding to cut single-player.
Reminder: This is a rumor. The idea of cutting the single-player isn't
Charles Singletary posted a new article, COD: Black Ops 4 Rumored to Ditch Campaign, Focus on Multiplayer and Co-op Modes
Oh, I'm sure that'll work out great. Did wonders for Black Ops III on PS3.