
Sleep grenades are a weapon in Metal Gear Solid V: The Phantom Pain that can be used to knock out enemies non-lethally. They are effective when facing a group of enemies, but they take time to release the gas, and enemies may hear or see the grenade and run away. Sleep grenades can be upgraded to increase their effectiveness, and a sleep grenade launcher can be unlocked that detonates on impact. However, sleep grenades may not work on high-level FOB missions, as the guards may wear gas masks or have high resistance to sleep weapons.
| Characteristics | Values |
|---|---|
| Effectiveness | Sleep grenades are effective when facing a group of enemies. |
| They can be used to knock out guards on FOB missions. | |
| They are quieter than stun grenades. | |
| They may not work on high-level FOB missions as guards may wear gas masks. | |
| They are less effective if the enemy sees them as they will start running away. | |
| Shooting them almost always leads to a combat alert. | |
| They can be upgraded to increase their effectiveness. | |
| They can be used with a launcher that detonates on impact. | |
| They can be used with a decoy to catch enemies in a tight area. | |
| They can be thrown to the opposite side of the player's position to draw attention. | |
| Availability | They can be unlocked for use in FOB missions. |
| They may not be available when spawning into FOB missions due to a glitch. |
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What You'll Learn

Sleep grenades are ineffective against high-level guards wearing gas masks
Sleep grenades are a great tool when facing a group of enemies in FOB missions. However, they are not always effective, especially against high-level guards. While sleep grenades can be useful for stealthily incapacitating groups of enemies, they have some drawbacks that high-level guards can exploit.
One issue with sleep grenades is the time it takes for the gas to release and take effect. If enemies spot the grenade, they may have time to run away and avoid the gas altogether. This is a common problem that users face, rendering the sleep grenade useless in those situations. Additionally, the sound of the grenade hitting the ground or a wall can alert guards, causing them to investigate or flee the area.
To counter the sleep grenade strategy, high-level guards may start wearing gas masks, rendering the sleep grenades ineffective. This is a significant challenge for players as the guards are then immune to the sleep gas. In such cases, players might have to resort to other tactics or weapons, such as stun grenades or non-lethal bullets, to incapacitate or distract the guards.
Furthermore, high-level guards in FOB missions tend to have enhanced resistance to sleep weapons in general. Even when hit with sleep darts or grenades, they may shrug off the effects, requiring multiple shots or grenades to take them down. This makes sleep grenades inefficient against these guards, as players will have to expend more resources to achieve the desired effect.
In conclusion, while sleep grenades can be useful in certain situations, they are not a foolproof solution, especially against high-level guards in FOB missions. The guards' use of gas masks and their increased resistance to sleep weapons render the sleep grenades ineffective, forcing players to adapt their strategies accordingly.
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Shooting sleep grenades can lead to a combat alert
Shooting sleep grenades can almost always lead to a combat alert in FOB mode in the video game Metal Gear Solid V: The Phantom Pain. Players have reported that enemies often hear the grenades and jump out of the way, and that the "'clang!' noise from ricochets can alert them". However, some players have found success by throwing multiple sleep grenades at once or using a sleep grenade launcher that detonates on impact.
In the game, sleep grenades are meant to be non-lethal weapons that put enemies to sleep, allowing players to capture them or move past them undetected. However, players have reported that enemies often hear the grenades coming and jump out of the way before they can be affected. This can be frustrating for players who want to use sleep grenades as a stealthy alternative to lethal weapons.
One strategy that players have found some success with is throwing multiple sleep grenades at once in different directions. This increases the chances of hitting the target and can be effective until the player develops to level 3. However, this strategy can also be risky as it uses up grenades quickly, and enemies may start to wear gas masks to counter the sleep gas.
Another option is to use a sleep grenade launcher, which can be mounted on an assault or sniper rifle and detonates on impact. This allows for more precise and immediate deployment of sleep grenades, making it harder for enemies to evade. However, obtaining the sleep grenade launcher requires progressing far into the development tree and acquiring the necessary resources, such as African peach.
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Sleep grenades are useful when facing a group of enemies
Sleep grenades are also quieter than stun grenades, which cause a loud explosion that alerts nearby enemies. However, the smoke from a sleep grenade can also cause people to investigate, depending on their line of sight. If they can't see the smoke, they won't know you used a sleep grenade. Additionally, sleep grenades may not work on high-level non-lethal bases, as the guards wear gas masks.
To increase the effectiveness of sleep grenades, you can add an underbarrel grenade launcher to your weapon. This gives you a longer range and easier aim, and it detonates on impact, so guards can't evade. However, it counts as an unsilenced gunshot. Another option is to obtain the sleep grenade launcher further down the development tree, which also detonates on impact.
Overall, sleep grenades can be a valuable tool in FOB missions when facing groups of enemies, but they require careful use and consideration of the enemy's equipment, positioning, and behaviour.
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Sleep grenades are quieter than stun grenades
Sleep grenades are also advantageous in that they are quiet and effective at putting multiple enemies to sleep. However, the major drawback is the deployment cost, as they require resources like GMP and African Peach. Additionally, in Metal Gear Solid V: The Phantom Pain, high-tier non-lethal guards will wear gas masks, rendering sleep grenades ineffective.
To use sleep grenades effectively, players must be strategic in their deployment. It is crucial to catch enemies in a confined area, considering their positioning in relation to walls to prevent them from escaping the gas. Players can also combine sleep grenades with other tactics, such as using an active decoy to distract enemies before deploying the sleep grenade. Another strategy is to throw multiple sleep grenades simultaneously from slightly different angles to ensure a guaranteed hit.
While sleep grenades offer stealth and effectiveness, they require careful planning and resource management. Players must also be mindful of the enemies' gear, as gas masks will render sleep grenades useless.
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Sleep grenades can be upgraded to increase their effectiveness
Upgrading sleep grenades increases their area of effect, making them more useful. You can also combine them with other tactics, such as using an active decoy to distract enemies before throwing the sleep grenade. Throwing multiple sleep grenades at once is another strategy, which guarantees success until you reach level 3. However, this will use up your grenades quickly, and enemies may start wearing gas masks to counter this strategy.
Another upgrade option is the Zorn Sleep Grenade Pistol, which can be used with a shield, allowing you to knock out enemies at medium range while staying protected. However, it is loud, and some players prefer stun grenades for their more disruptive effect on enemy aim.
Sleep grenades can be useful in FOB missions, but they may not always work as intended. Enemies may hear the grenade and jump out of the way, or you may accidentally sleep-mine yourself. To avoid this, try to throw the grenade further away from yourself and be mindful of the loud noise it makes when used.
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Frequently asked questions
Sleep grenades can work on FOB missions, but they are not always effective. They can be useful when facing a group of enemies, but they take time to release the gas, so if enemies see them, they might start running away.
Upgrade your sleep grenades to increase their effectiveness. At Level 5, they can knock out enemies who try to dive away, and at Level 7, enemies may walk into the smoke to investigate. You can also use a sleep grenade launcher that detonates on impact, but this requires more resources.
Stun grenades can be a good alternative, as they have a larger blast radius and are quicker to blast. However, they create a loud explosion that can alert nearby enemies. Smoke grenades can also be used to obscure your targets' vision, but they will also release smoke that enemies can see.
Try to remain stealthy by crouch-walking, using magazines or non-lethal bullets to distract guards, and taking advantage of daylight, as night vision may be less effective during the day.
FOB missions can be challenging due to the presence of cameras, drones, snipers, guards with bullet-resistant masks and night vision, and well-fortified bases. Players may also encounter glitches that affect their equipment and resources.











































