Call of Duty: Black Ops War’s Zombies Mode is another take on Treyarch’s beloved undead horde mode. While there are a lot of changes this time around, a lot of classic aspects of the mode have returned with the main Easter Egg, weapon upgrades, and perk-a-colas.
Zombie cards also always have a secret song that you can activate there as well. In the past, this was mostly done by interacting with three teddy bears hidden around the map. This time you have to take three tapes. You’ll know you’ve done this right when the tape disappears in front of you. Here are the three Band locations in Die Maschine in Call of Duty: Black Ops Cold War.
The first cassette is in the living room (the room with the DIE. Shockwave). You can find a refrigerator on the left side of the room with the Shockwave in it. The tape is inside.
The second cassette is in the Med Bay, otherwise known as the Chamber with Speed Cola. To find it you need to be in the side room above the Speed Cola machine. Go to the barrier to the right of the room, and on a shelf directly to the left is the ribbon you need to pick up.
The final strip is in the particular accelerator (the part with the Pack-a-Punch machine). To see it, go to the first floor of the room and find the crafting table under and behind the PaP machine. While looking at it, turn right and go behind the wall in front of you. The tape is suspended above the machine. As soon as the last tape is taken, the song “Alone” by Kevin Sherwood begins to play.