
In the video game Call of Duty: Black Ops 4, players can unlock the character Mason in Blackout by completing the Wake the Sleeper Agent challenge. To do this, players must first obtain Mason's stained white T-shirt from supply crates. Then, they must travel to the Array area and enter the central building. There, they will find a console with a blinking green light, which they can interact with to wake the sleeper agent. Finally, they must finish in the top 15 for Solos, top 8 for Duos, or top 4 for Quads while keeping the T-shirt in their inventory. The concept of a sleeper agent also exists in real life, where spies are placed in a foreign country with no memory of their past and constructed false memories. They are awakened by a series of specific code words that activate them and bring them out of their state of sedation.
| Characteristics | Values |
|---|---|
| Game | Call of Duty: Black Ops 4 |
| Game mode | Blackout battle royale |
| Challenge name | Wake the Sleeper Agent |
| Character to unlock | Mason |
| Item required | Stained white T-shirt |
| Location | Array |
| Action | Locate and activate the button on the terminal on the radio tower |
| Placement | Top 15 for solos, top 8 for duos, top 4 for quads |
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What You'll Learn

Find the stained white t-shirt
To find the stained white t-shirt, you must first identify the type of stain. This is important because the nature of the stain will determine the best course of action for removing it.
Oily and non-oily stains, for example, require different treatments. Once you have identified the type of stain, you can select the most appropriate method for removing it. Here are some common approaches:
Soaking
Soaking the stained area in a solution is often an effective way to remove stains. You can create a solution by mixing vinegar, hydrogen peroxide, or oxygen bleach with water. Submerge the stained area and let it soak for at least an hour or overnight. This method is especially useful for tough stains.
Baking Soda
Baking soda is a powerful cleaning agent that can be applied as a paste directly to the stain. Create a paste by mixing baking soda with water, then gently apply it to the stain and let it sit. This method is ideal for fresh stains, as it can help prevent the stain from setting in.
Vinegar
White vinegar is a natural stain remover and fabric softener. Dilute the vinegar with water and apply it to the stain. Blot the area with a damp cloth, then wash out the vinegar solution with cold water. Repeat if necessary. Be cautious when using vinegar, as it can cause colour fading in some fabrics.
Hydrogen Peroxide
Hydrogen peroxide is an oxidizing bleach that is commonly used to tackle tough stains. Dilute a solution of hydrogen peroxide and apply it to the stain for 5-10 minutes. Gently blot the stain, then rinse with cold water. Always handle with care and avoid using it on sensitive fabrics.
Lemon Juice
Lemon juice is particularly effective for removing sweat stains, especially in the underarm area. Create a solution of equal parts water and lemon juice, then rub it into the stained area.
After using any of these methods, be sure to wash the t-shirt according to the care instructions on the label. Treat the stain as quickly as possible to prevent it from setting in and becoming permanent.
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Make your way to the Array location
To make your way to the Array location, you must first obtain the stained white T-shirt item. This can only be found in crates around the map of the Call of Duty battle royale game mode. Once you have the T-shirt, you need to navigate to the Array location on the Blackout BO4 map. The Array is a specific location within the game, and you will need to locate the radio tower in its centre.
The radio tower is your central target within the Array location. It is here that you will find the terminal with the button required to wake the sleeper agent. The Array location is likely to be a busy and contested area, given its importance within the game. Players will need to be cautious and prepared for potential conflict as they make their way to the Array.
The Blackout battle royale game mode combines fast-paced Call of Duty action with the popular battle royale genre. As you move towards the Array, you will need to be aware of the shrinking play area. Stay ahead of the circle to ensure you have enough time to reach your destination. Keep an eye out for other players attempting the same objective, as they may try to eliminate you to complete the challenge themselves.
The Array location is key to unlocking Mason, a central character in the Treyarch series. This challenge must be completed in a single match, adding to the difficulty of the task. Players should be well-equipped and prepared for a range of scenarios as they navigate towards the Array to wake the sleeper agent.
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Locate the terminal button
To locate the terminal button to wake up the Sleeper Agent in the Call of Duty: Black Ops 4 video game, players must first travel to the Array area on the map. The Array is the location of the Blackout BO4 map. Once you arrive at the Array, head to the main building in the middle of the area. This is the radio tower in the center of the Array.
Upon entering the building, look for the glowing or blinking green console. This is the Black Ops 4 Sleeper Agent. Interact with the console by holding down the X or Square button on your platform of choice. This will "wake" the Sleeper Agent.
It is important to note that simply locating and activating the terminal button is not enough to complete the "Wake the Sleeper Agent" challenge in the game. Players must also obtain a stained white T-shirt item found in crates around the map and stay alive with this item in their inventory. Additionally, players must finish the match within a certain rank, depending on whether they are playing in Solos, Duos, or Quads.
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Activate the button
Activating a sleeper agent is a complex and risky process. It involves triggering a deep-cover agent, who has potentially been dormant and undetected for many years, to begin their assigned mission. The activation process can vary depending on the specific circumstances and the nature of the sleeper agent.
One common method of activation is through the use of a pre-arranged signal or code phrase. This could be a postcard with a significant picture, as seen in various fictional portrayals, or a specific password or passphrase that the agent was trained to respond to. For example, in the film "Telefon", Russian sleeper agents' memories were unlocked by a special activation phrase. This method requires the activating party to approach the agent directly, which can be risky if the agent has been compromised or is under surveillance.
Another way to activate a sleeper agent is through a form of remote communication, such as a phone call, text message, or email. This method allows for a greater degree of deniability and can be done from a distance. However, it relies on the agent having access to the necessary communication devices and infrastructure.
In some cases, sleeper agents may not be aware that they are sleepers and have been brainwashed, hypnotized, or conditioned to carry out their mission when triggered. For example, in the film "The Manchurian Candidate", Americans captured by Soviet intelligence forces are given post-hypnotic commands and returned to their lives, unaware of their secret mission until activated.
Regardless of the method used, activating a sleeper agent is a delicate operation that requires careful planning and execution to ensure the agent's cover remains intact and the mission is successful.
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Stay alive with the stained white t-shirt in your inventory
To stay alive with the stained white t-shirt in your inventory, you must be playing the Blackout battle royale game mode for Call of Duty: Black Ops 4. This game mode combines the fast-paced action of Call of Duty with the popular battle royale genre.
To unlock the central character Mason, you must complete the Wake the Sleeper Agent challenge. To do this, you must first obtain the stained white t-shirt, which can be found in crates around the map. Once you have the t-shirt, you need to make your way to the Array location on the map. Here, you will need to locate and activate the button on the terminal in the radio tower at the center of the Array.
After activating the button, you must stay alive with the stained white t-shirt in your inventory to complete the challenge. The requirements for staying alive differ depending on your game mode. If you are playing solos, you need to make it to the top 15, while those completing the challenge in duos must secure a top eight placement. For quads, a top four placement is required.
It is important to note that the stained white t-shirt cannot be washed, as this will remove the stain and invalidate the challenge.
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Frequently asked questions
To wake the sleeper agent in Call of Duty: Black Ops 4, you must first obtain a stained white T-shirt, which can be found in crates around the map. Once you have the T-shirt, make your way to the Array location on the Blackout BO4 map. At the Array, locate and activate the button on the terminal in the centre of the Array.
After activating the button, you must stay alive with the stained white T-shirt in your inventory. If you are playing solos, you need to make it to the top 15. For duos, a top eight placement is required, and for quads, a top four placement is necessary.
Waking the sleeper agent is necessary to unlock Mason, a central character in the Treyarch series, in Blackout for Black Ops 4.
Yes, it seems that the Array can be activated multiple times. However, if it is in the storm (collapse), it cannot be activated.











































