If these rumors turn out to be true, Call of Duty: Black Ops 4 will be the first game in franchise history not have a proper campaign. (wccftech.com)
However, having a new team behind this particular entry does show, and it never does quite hit the lofty standards established by previous games in the franchise. (hardcoregaming101.net)
It's a new game, just with references back to other games in the franchise. (toy-tma.com)