
In Call of Duty: Black Ops 4, players can unlock the character Mason by completing the Wake the Sleeper Agent challenge. This involves obtaining a stained white t-shirt from crates around the map, travelling to the Array location, and locating and activating a button on the terminal in the centre of the Array. Once the button has been activated, players must stay alive with the t-shirt in their inventory, finishing in the top 15 for solo players, top 8 for duos, and top 4 for quads. The Sleeper Agent is also a Field Upgrade in Call of Duty: Black Ops 6, which allows players to disguise themselves as an Operator for the other faction, Rogue Black Ops or Crimson One, and blend in with the enemy.
| Characteristics | Values |
|---|---|
| How to wake the Sleeper Agent | Find the Sleeper Agent in the Array area on the map, in the main building. |
| Interact with the console with a blinking green light by holding the X/Square button. | |
| Finish the match in the top 3 for Solos, top 2 for Duos, and win a match for Quads. | |
| Sleeper Agent's function | Sleeper Agent allows players to disguise themselves as an Operator for the other faction, Rogue Black Ops or Crimson One, for a short period of time. |
| Sleeper Agents have three states: Hidden, Tracked, and Exposed. | |
| The player's nameplate will scramble and turn into different letters and numbers if an enemy player aims at them. | |
| The player will be vulnerable to AI targeting and equipment such as Spring Mines and Blast Traps. | |
| Unsuppressed gunfire or shooting will reveal the player temporarily. |
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What You'll Learn

How to wake the sleeper agent in Call of Duty: Black Ops 4
To wake the sleeper agent in Call of Duty: Black Ops 4, players need to complete a series of challenges. Firstly, players need to unlock the character, Reznov, and play as him in a match. They then need to find Mason's stained white t-shirt, which can be found in random supply crates around the map.
Once the t-shirt has been collected, players need to head to the Array area on the map and enter the central building. Inside, they will find a console with a blinking green light, which they can interact with by holding the X/Square button.
After activating the console, players need to finish the match in a certain placement, depending on their game mode. In Solos, they must finish in the top 3 or 15, in Duos, they must finish in the top 2 or 8, and in Quads, they must win the match.
Completing these challenges will allow players to unlock Mason, a central character in the Treyarch series, in Blackout for Black Ops 4.
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The importance of the stained white t-shirt item
The stained white t-shirt is an essential item in the Call of Duty: Black Ops 4 video game. It is a key component of the "Wake the Sleeper Agent" challenge, which players must complete to unlock the popular character Mason, a central figure in the Treyarch series, as a playable character in the Blackout battle royale game mode.
The stained white t-shirt is a special item that can only be found in crates or supply stashes scattered across the map in the Call of Duty battle royale mode. Obtaining this item is the first step in the "Wake the Sleeper Agent" challenge. Once players have the t-shirt, they must progress to the Array location on the Blackout map. Here, they need to find and activate a button on a terminal located in the centre of the Array, usually on a radio tower. This action triggers the Emergency Broadcast.
Staying alive with the stained white t-shirt in the player's inventory is the final critical step in the challenge. The specific requirements vary depending on the gameplay format. For players competing in solos, reaching the top 15 is necessary. Duo players must secure a top eight placement, while those in quads need to place in the top four. Completing the "Wake the Sleeper Agent" challenge in this manner allows players to unlock Mason as a playable character in Blackout.
The stained white t-shirt, therefore, plays a pivotal role in the "Wake the Sleeper Agent" challenge. It serves as a prerequisite to initiating the challenge and is integral to the player's success in unlocking the highly sought-after character, Mason, in Call of Duty: Black Ops 4.
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How to unlock Mason in Blackout
To unlock Mason in Blackout, you must complete the "Wake the Sleeper Agent" challenge. This involves several steps:
Firstly, you need to obtain the stained white t-shirt, which is a partial requirement for unlocking Mason. This can be found in supply drops, supply stashes, or crates around the map. Once you have the t-shirt, you must make your way to the Array location on the Blackout map. Here, you will need to locate and activate the emergency broadcast by finding the button on the terminal in the radio tower at the center of the Array.
After activating the emergency broadcast, you must stay alive and place highly in the match. The specific placement requirements vary depending on the game mode. For Solos, you need to place in the top 15, for Duos, you need to secure a top 8 placement, and for Quads, you need to place in the top 5. It is important to note that you must have the stained white t-shirt in your inventory when the match ends.
Additionally, it is worth mentioning that Mason can also be unlocked in Solo, Duos, or Quads sessions the same way as in the "Hot and Heavy" mode. In this mode, players can match against a friend/partner in the same lobby by searching for "Hot and Heavy" at the same time.
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How to locate the Sleeper Agent console
The Sleeper Agent is a Field Upgrade in Call of Duty: Black Ops 6 that allows players to disguise themselves as enemy team members. This upgrade can be used to dominate spawns and execute crucial plays to secure objectives in Multiplayer.
To locate the Sleeper Agent console, follow these steps:
- Head to the Array area on the map. This is where the Sleeper Agent console is located.
- Once you arrive at the Array area, make your way to the main building in the middle of the area.
- Enter the building and look for the glowing green console. This is the Sleeper Agent console.
It is important to note that the Sleeper Agent upgrade is unlocked at a late stage in the game, at level 51 of the prestige rank. It is also worth mentioning that while the Sleeper Agent can be a powerful tool, it has a large cooldown period compared to other upgrades. Additionally, players using this upgrade will be vulnerable to certain equipment and perks, such as AI targeting and the Vigilance Perk, which can reveal their disguise.
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Tips for succeeding in the Blackout battle royale game mode
Blackout, Call of Duty's take on the battle royale genre, is a fast-paced game with numerous features. Here are some tips to help you succeed in this game mode:
Choosing a Landing Spot
Jumping from a helicopter, players should use their wingsuits to reach a strong starting location. Making a quick decision is important to avoid being left at a disadvantage against speedier competitors. Although landing at settlements can provide good equipment, these areas are more likely to be crowded and dangerous. Landing further away can leave players without gear, so it's a risk-reward situation.
Weapons and Gear
Weapons are crucial in Blackout, and players should prioritize finding them upon landing. They can be found almost anywhere, including on the floor, tables, chests, and even bathrooms. Looter, a perk that highlights all loot on the screen, can be useful for finding weapons. After securing a weapon, players should scavenge for complementary loot, such as ammunition, health, and armor. Backpacks are also highly valuable as they increase carrying capacity.
Zombie Areas
Blackout features zombie areas, such as Lighthouse and Asylum, where players can find powerful weapons and rare items. Zombies can drop fully equipped assault rifles and even the Ray Gun. Zombie areas can also spawn a Mystery Box, identified by a beam of blue light, containing rare items like zombie-themed weapons and high-level armor.
Stealth and Combat
Stealthy gameplay can be effective in Blackout. While buildings may seem like safe havens, they can be death traps as players outside will be scanning the windows for movement. Staying still and holding your nerve in open areas can make you less visible. Jumping and sliding can make your movements unpredictable and harder to hit. Continuous sliding actions, however, may be limited to prevent exploitation.
Team Communication
Communication is vital in Blackout. Playing with friends who can coordinate and support each other is advantageous. Marking your landing spot for teammates allows them to know how to assist you.
Other Tips
- Keep an eye on spectator options to learn from other players' strategies.
- Be strategic before engaging in combat, especially if low on supplies.
- Use tools like the RC-XD to scope out your environment without revealing your location.
- Utilize headphones to better hear auditory cues and spot enemies.
- Be aware of your surroundings, especially when dropping into the map, to anticipate the game's early stages.
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Frequently asked questions
To wake the Sleeper Agent in Call of Duty: Black Ops 4, you need to travel to the Array area on the map. Once there, head to the main building in the centre and locate the console with a blinking green light. Interact with the console by holding the X/Square button.
The next steps depend on whether you are playing Solos, Duos, or Quads. For Solos, finish the match in the top three. For Duos, finish in the top two. For Quads, you must win the match.
Yes, you must first obtain the stained white t-shirt item, which can be found in crates around the map.
Waking the Sleeper Agent is one of the challenges that must be completed in order to unlock Mason, a central character in the Treyarch series, in Blackout for Black Ops 4.
Yes, Mason, the protagonist of the original Black Ops, is one of the hardest characters to unlock. This is because, to unlock him, you must find and wake the Sleeper Agent, which is a vague and unexplained objective.





















