In the past hours Treyarch ha announced officially the release date of the second zombie map coming up Call of Duty: Black Ops Cold War, Firebase Z.

The map will be free for all players starting with the next one 4 February, and will continue the Dark Aether story that began in Cold War. Below is the official description of Firebase Z:

“With the destruction of the WWII-era Projekt Endstation site after investigating the otherworldly Dark Ether anomaly in Poland, Requiem now focuses on the latest site of the Dark Aether epidemic: Outpost 25, known with the code name Firebase Z. "

Further news on the content (with probable associated gameplay) will be revealed by Treyarch during the "115 Day", or in the day of tomorrow itself, 15 January.