The advert very helpfully displays the logo 'Call of Duty ... but now it's very clear that Activision and Treyarch consider the 2020 game as the fifth instalment in the ongoing series.

Starting off, the Treyarch-developed Black Ops 3 had cost Activision $450 million with a three-year development schedule. The title had gone on to sell 43 million copies. Next, Activision had ...