Call of Duty: Black Ops Cold War's Big Mid-Season Update Is Out Now The time is now for Call of Duty: Black Ops Cold War players as Activision reloads its gigantic multiplayer suite with more content for Zombies as well as traditional online bouts. The headline addition is the new Firebase Z map, which represents the first undead location to be added to the game since its November 2020 launch. Meanwhile, multiplayer fans have the return of Call of Duty: Black Ops II map Express to look forward to mastering all over again with their friends. The Express 24/7 playlist will be on hand to get you reacquainted.