Everyone who played the Call of Duty: Black Ops III multiplayer beta on PlayStation 4 can now download their free dynamic theme. Activision is giving the theme away as a “thank you” to fans.

The theme is accessible through the Black Ops III “Themes” tab. There you’ll find the “Morg City Zombies Theme” to download. It’s based on the noir-inspired, 1940s setting of Black Ops III’s zombies mode, Shadows of Evil, which stars Jeff Goldblum, Ron Perlman, Heather Graham, and Neal McDonough.