Ancient Evil

"In the hidden heart of ancient Delphi, Scarlett, Diego, Bruno and Shaw must rescue the fabled Oracle. But who is the Undead Warlord standing in their way?"

- Mission Briefing

Ancient Evil is the sixth Zombies map featured in Call of Duty: Black Ops 4, and the thirtieth map overall. Chronologically, it is the fourth map in the Chaos story. The map was released on March 26th, 2019 on PlayStation 4, and will be released on April 2nd, 2019 for Xbox One and PC.

The map takes place in Delphi, Greece, and serves as the finale to the Chaos storyline in Call of Duty: Black Ops 4. It features the return of the "Chaos" crew featured in Voyage of Despair and IX.

Overview
"“Ancient Evil” beckons the intrepid foursome from the Chaos Storyline – Bruno, Diego, Scarlett and Shaw – in a brand-new adventure into an underground Greek city to face off against new varieties of the undead. Featuring signature Call of Duty Zombies combat, Ancient Evil will test players’ skills as they fight new Zombies and enemies against the backdrop of a gargantuan cavern colossal enough to hold a sprawling city."

- Official Description

Ancient Evil is set in the underground city of Delphi, Greece; the Delphi aboveground is a red herring, a decoy according to Shaw in order to hide the real city's presence from its enemies. A Sentinel Artifact has already been activated within the city, and the trial contained within it has been going on for thousands of years, leaving the ancient city frozen in time and littered with the undead.