
In the Call of Duty: Black Ops 4 Blackout battle royale mode, players can unlock the main character of the first game, Alex Mason, by waking a sleeper agent. This requires players to first unlock Reznov and select him as their character. They must then find Mason's stained white t-shirt, which can be found in supply drops or crates, and travel to Array, where they can interact with a console to wake the sleeper agent. The final step to unlocking Mason depends on whether the player is in Solos, Duos, or Quads. Some characters in Blackout can be unlocked by achieving specific Echelon levels or purchasing the Battle Pass.
How to Wake a Sleeper Agent in Blackout
| Characteristics | Values |
|---|---|
| Game | Call of Duty: Black Ops 4 |
| Character to unlock | Alex Mason |
| Previous character to unlock | Reznov |
| Item to find | Mason's Stained White T-Shirt |
| Location of item | Supply drops, crates, or boxes around the map |
| Next step | Travel to Array |
| Action to take at Array | Interact with the console with a blinking green light in the center building |
| Final step | Depends on the game mode (Solos, Duos, or Quads) |
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What You'll Learn

Play as Reznov
Viktor Reznov is a playable character in the flashback level "Project Nova" in Call of Duty: Black Ops. In this level, Reznov is referred to as a captain and takes part in a battle against the Nazis, which is set a few months after the Battle of Berlin. Reznov is also playable in the Wii version of World at War, where his hand will always appear injured and wrapped in a bloody bandage.
In Call of Duty: Black Ops, Reznov is a Red Army officer who participated in pushing the Nazis back to Berlin and was later promoted to captain for his services during World War II. Reznov is 5'11" and 200 pounds with a "heavy-set" build. He is first introduced in the game during the Vorkuta mission, where he meets Alex Mason in a prison camp. If players shoot Reznov during this mission, they are penalised for betraying their comrades, but there is no penalty for shooting him in any of his appearances after this mission. This is because he is only a hallucination, as revealed by the lack of reaction to Mason's friendly fire.
Reznov also appears in Call of Duty: Black Ops II, where his name and birthdate can be seen on the dog tags in the "Kill Confirmed" mission. He can also be seen in the non-canonical after-credits dance party, dancing next to Alex Mason. In the Zombies map "Mob of the Dead", "Reznov's Revenge" is a usable weapon.
In the 2040s, Reznov is brought back to life by Project Blackout, alongside Mason, Frank Woods, Jason Hudson, and Raul Menendez. He was voiced by Gary Oldman and is a playable skin in Call of Duty: Mobile.
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Find Mason's stained white t-shirt
To find Mason's stained white t-shirt in Blackout, you must first unlock Reznov, the main character from the first Black Ops game. Once you have unlocked Reznov, make sure he is your selected character in Blackout and then play a match.
After that, you need to find Mason's stained white t-shirt, which can be discovered in random supply crates or drops around the map. These supply crates are located in various places, including Hydro, where one player reported finding the shirt in a crate.
It is important to note that the shirt may not always spawn in the same location, so it may require some exploration and persistence to locate it. Once you have collected the t-shirt, you can move on to the next step of waking the sleeper agent.
The process of waking the sleeper agent involves travelling to Array. Once you arrive at Array, you need to locate the central building. Inside this building, there will be a console with a blinking green light. Interact with this console by holding down the X or Square button, depending on your platform of choice.
After interacting with the console, the final step to unlock Mason will vary depending on whether you are playing Solos, Duos, or Quads. In Solos, you must finish the match in the top three. For Duos, players need to finish in the top two. Quads players will need to win the match.
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Travel to Array
To wake the Sleeper Agent in Blackout, you must travel to Array and activate the Emergency Broadcast. This is done in the same way as the Dark Ops challenge: by starting the Emergency Alert.
To do this, you must first travel to Array. Array is a location on the map, and once you arrive, you will need to find the Emergency Broadcast button. This button will be located somewhere within the Array area, so search the area thoroughly.
Once you have located the button, press it to start the countdown and wake the Sleeper Agent. You will know that you have been successful when you hear the nuke sound.
It is important to note that simply waking the Sleeper Agent is not enough to unlock certain characters, such as Mason. There may be additional requirements, such as placing within a certain rank in matches and having specific items in your inventory during those matches. Be sure to check the unlock requirements for the character you are trying to unlock.
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Interact with the console
To interact with the console and wake the sleeper agent, follow these steps:
First, make your way to the Array area on the map. The Array is the location of the Blackout BO4 map. Once you've arrived at the Array, head to the main building in the centre of the area. This building is the radio tower.
Go inside the building and locate the glowing green console. This is the sleeper agent. Interact with the console by using the X or square button on your platform of choice. This will activate the button on the terminal and wake the sleeper agent.
After activating the console, you will need to stay alive with the stained white T-shirt item in your inventory to complete the challenge. The requirements for this vary depending on your game mode: players in solos need to make it to the top 15, duos must secure a top eight placement, and a top four placement is required for quads.
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Complete the final challenge
To complete the final challenge and unlock Mason in Blackout, players must first unlock Reznov and select him as their character. Then, they must play a match and find Mason's stained white t-shirt, which can be found in random supply crates or drops around the map. Once the t-shirt has been collected, players must travel to Array, where they will find a console with a blinking green light in the center building. Interacting with the console by holding the X/Square button will start the countdown to wake the sleeper agent. The final step to unlock Mason depends on whether the player is in Solos, Duos, or Quads.
It is important to note that the process of unlocking Mason in Blackout may differ depending on the game mode and updates. Some characters in Blackout can be unlocked by achieving specific Echelon levels or purchasing the Battle Pass. Additionally, character-specific items must typically be found and a series of "Character Missions" must be completed to unlock unique character skins.
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Frequently asked questions
First, unlock Reznov and select him as your character in Blackout. Then, play a match and find Mason's stained white t-shirt, which can be found in random supply crates around the map. After collecting the t-shirt, go to Array and interact with the console in the center building by holding the X/Square button. The final step to unlock Mason will differ depending on your game mode.
The update adds playable Black Ops 'icons' to Blackout, including the main character of the first game, Alex Mason.
For Mason, the item is his stained white t-shirt.
No, certain characters such as Ranger, Frogman, Airborne, Seal, and Battle Hardened can be unlocked by achieving specific Echelon levels or by purchasing the Battle Pass.
Echelon levels are tied to Call of Duty's leveling system, where players receive merits (experience) for tasks such as getting a kill, winning a match, or completing a challenge.



































