The Warzone Rebirth Island easter egg is one of the hardest in all of Call of Duty yet, but completing it is well worth the luck, patience and coordination it requires.

Upon following the steps, players will unlock the secret bunker which includes an easter egg weapon reward. Here's how to complete the Rebirth Island bunker easter egg in Call of Duty: Warzone.

Warzone Rebirth Island Easter Egg: Briefcase Spawns and Picture Locations

  • Step 1: Locate the briefcase on the map, which has 11 different random spawns as shown mapped out by r/UlteriorCovert on Reddit. To avoid having to deal with the gas, try flying to one of the spawns in the pregame lobby as there's a chance the briefcase will reveal itself just before the timer reaches zero. Once located, the briefcase will be found open with three randomized photographs on the floor.
Here is a map of all of the 11 briefcase spawns and 26 picture locations.
Here is a map of all of the 11 briefcase spawns and 26 picture locations. / Photo courtesy of UlteriorCovert
  • Step 2: Each of the three photos will indicate one of 26 parts of the the map that players will have to go to next. Each location will have a hidden sequence of two to three random numbers and some dash marks for players to jot down. For instance, looking at picture location 16 (Prison Lockers) in the map above, the code will be located inside the bottom grates of the lockers (e.g. -100), so players will need to have a sharp eye.
  • Step 3: To put the password together, the first code will only have a dash at the end, the second code will start and end with a dash, and the third and final code with only have a dash at the beginning (e.g. -100, -69-, 250- = 25069100).
  • Step 4: Enter the password into the number pad of the bunker's yellow door. The bunker is located in the Headquarters Command Center building. Once inside, players will be able to grab the Red Room blueprint for the Milano 821 SMG, as well as some powerups such as the Specialist Bonus perk.