'Call of Duty: Black Ops 4' will have a zombie mode.

Call of Duty: Black Ops 4

Call of Duty: Black Ops 4

Treyarch have managed to slip a slice of horror into every game since the original in 2003 and now it looks like they're going to do the same with the next instalment after they teased the Nazi Zombies return earlier today (10.05.18) on Twitter.

The 'Call of Duty: Black Ops 4' tweet showed a terrifying image of a zombie removing a carved mask from its face with the message: "So it begins..."

The title is coming to PlayStation 4 and Xbox One in October this year and Activision has confirmed it is putting a lot of effort into the PC version.

Activision Publishing's president Collister 'Coddy' Johnson added that the company plans to put "significant dedicated resources" into the PC release.

In an interested tease, he also revealed that the game will use data from the "billions" of hours players have spent on previous 'Call of Duty' games.

He explained the company will use this in-depth and real-time data about what users are playing and enjoying, and suggested the new title will reflect this.