Call of the Dead is part of the upcoming Escalation Map Pack DLC which introduces four new characters, Robert Englund(From Nighmare on Elm Street), Sarah Michelle Gellar(From Buffy Vampire Slayer), Danny Trejo(From Machete), Michael Rooker(From Walking Dead). The trailer has a Grindhouse like presentation which is a nod to the classic George A Romeo’s zombie movies.
The story is inspired by George A Romeo’s zombie movies, who also has a short cameo of himself.
This DLC is due out on May 3 for Xbox 360. It costs 1200(15$) Microsoft points and comes with 4 multiplayer maps as well.
Escalation DLC
Source: Kotaku