There are several Easter eggs for you to uncover in the Citadelle des Morts zombies map in Call of Duty: Black Ops 6. A major Easter egg you need to learn about is how to unlock the swords, and there are four of them for you to get.
Getting the swords can be tricky. Not only do you need to survive as a set amount of time, you need to grab a particular item that drops after defeating a zombie. After you take out that zombie, grab the item and take it to a specific location. Like previous zombies maps, nothing is immediately shared with you until you learn about it through trial and error. Here’s what you need to know about how to get the Swords from the Black Ops 6 zombies Citadelle des Morts map.