The sound comes from Call of Duty: World at War, released in 2008, where Treyarch introduced Nazi Zombies. The demonic announcer, the voice of Samantha Maxis, calls out power-up drops, and Max Ammo became the most welcome of them across maps like Nacht der Untoten, Verrückt, Shi No Numa and Der Riese. The line returned in Black Ops on maps such as Kino der Toten and Five, cementing it for a generation of co-op players. Clips and edits still use it alongside other FPS callouts like enemy spotted whenever a refill saves a run.