Ascend from Darkness Pack

"Due to a botched teleporter jump, the Ultimis crew have ended up in the Eclipse Universe within an abandoned school in Grundschule Köln, Germany. They stand with members of the now-defunct Tachibana Crime Families to not fight off zombies, but soldiers of the Nakamurian Federation. Fight within a fan-favourite Zombies map from the Prelude in Violet storyline in Call of Duty: Retribution Multiplayer."

- Official description

The Ascend from Darkness Pack is a promotional DLC for Call of Duty: Retribution that's available at no cost. It shows up once players load up Multiplayer menu for the first time. It's also accessed in the Store menu from either the Main Menu, Multiplayer Menu or the Armoury dashboard.

Content
The DLC features the Ultimis crew Thomas "Tank" Dempsey, Nikolai Belinski, Takeo Masaki and Edward Richtofen as Skins for players to equip onto members of Rose Squad or onto their Multiplayer characters.

Also included with the DLC is the "Schule für die Untoten" Zombies map as a available map in Multiplayer modes such as Team Deathmatch, Kill Confirmed, Free for All, Gun Game, and Infected. The map was converted into the Semblance engine by Frost Games.