The Ultimate 3-Step Guide To Unlocking The LC10 Monolithic Suppressor In Warzone And MWIII
The Monolithic Suppressor for the LC10 Submachine Gun remains one of the most sought-after muzzle attachments in the current Call of Duty landscape, even in December 2025. This is due to its unparalleled combination of sound suppression and damage range increase, transforming the already potent LC10 into a silent, long-range shredder. However, because the weapon and its attachments are legacy items from *Black Ops Cold War*, the unlock method is no longer a simple level-up progression, but instead relies on the modern *Modern Warfare III* and *Warzone* Armory Unlock system. We break down the precise, current steps you need to take to get this crucial attachment on your favorite SMG today.
The confusion surrounding the Monolithic Suppressor stems from its initial availability via a specific Battle Pass or a series of temporary in-game bugs—such as the one where killing a 'Most Wanted' contract instantly unlocked it. Forget those old, unreliable methods. The permanent, reliable, and intended way to acquire this attachment now is by targeting it directly through the Armory Unlock feature, which requires you to complete a short series of daily challenges or win matches to finally equip the highly coveted stealth barrel.
The Definitive Armory Unlock Method (2025 Update)
The LC10’s Monolithic Suppressor is now categorized as a legacy attachment within the *Warzone* and *Modern Warfare III* ecosystem. This means it is no longer tied to the weapon’s original level progression from *Black Ops Cold War*. Instead, you must use the Armory Unlock system to target and complete its specific challenge. This process is the same for all legacy weapons and attachments that were missed during their respective Battle Pass seasons.
Step 1: Activate the Armory Unlock Challenge
Before you can begin earning the attachment, you must first select it in the Armory Unlock menu. This tells the game which item you are actively working towards.
- Navigate to the Gunsmith: Select the LC10 SMG in your loadout.
- Find the Attachment: Go to the Muzzle attachment slot and scroll down until you find the Monolithic Suppressor.
- Activate the Unlock: If the attachment is locked, it will display the Armory Unlock requirement. Select the attachment to "Activate" the challenge. This is the critical first step that dedicates your progress to this specific item.
Step 2: Complete Daily Challenges or Win Matches
Once activated, the Monolithic Suppressor will be unlocked by completing a set number of tasks. The Armory Unlock system provides two primary ways to earn progress:
- Daily Challenges: The most common method. You must complete a set number of your three available daily challenges (e.g., Get 15 kills with an SMG, Get 5 headshots, etc.). Completing a challenge counts as one step towards the unlock.
- Bonus Wins: Winning a match in *Warzone* or *MWIII* (Multiplayer/Zombies) also counts as an Armory Unlock step. This is a faster alternative if you are consistently winning games.
The Monolithic Suppressor typically requires completing 3-5 successful Armory Unlock steps (a combination of challenges and wins). Focus on the easiest daily challenges in *MWIII* Multiplayer or *Warzone* Resurgence for the fastest results.
Step 3: Equip and Dominate
Once you complete the required number of challenges, the Monolithic Suppressor will be instantly unlocked and available for the LC10 in the Gunsmith. You can then apply it to any LC10 blueprint you own, instantly granting the weapon its maximum potential for stealth and range.
Pro Tip: If you encounter a bug where the attachment appears locked after completing the challenge, try activating a different, random legacy item in the Armory, then go back to the LC10 Gunsmith. This simple workaround has been known to force the system to recognize the unlock.
Why the Monolithic Suppressor is Essential for the LC10
The LC10 is a highly versatile Submachine Gun known for its excellent damage range and manageable recoil, making it a powerful mid-to-long-range SMG. The Monolithic Suppressor is the single most important attachment for this weapon, as it addresses its only major drawback and enhances its strengths, making it a top-tier choice in *Warzone* and *MWIII*.
Key Performance Benefits (The Stealth Advantage)
In the world of competitive Call of Duty, going undetected is often the difference between a high-kill game and a trip to the Gulag. The Monolithic Suppressor is the ultimate stealth tool for the LC10. This Muzzle attachment provides two critical statistical boosts:
- Sound Suppression: This is the primary benefit. It completely mutes your gunfire, keeping you off the enemy's minimap when firing. This is non-negotiable for flanking maneuvers and maintaining positional advantage in Battle Royale and Resurgence modes.
- Increased Damage Range: Unlike many other suppressors, the Monolithic design significantly boosts the LC10's effective damage range. This is particularly valuable for an SMG, allowing you to compete with Assault Rifles at distances where other SMGs would suffer from severe damage drop-off.
- Bullet Velocity: While it may incur a minor penalty to ADS speed and stability, the increased bullet velocity makes hitting targets at range more reliable, as the bullets travel faster to the target.
These combined effects solidify the LC10 as a "Hybrid SMG" that can effectively bridge the gap between close-quarters combat and medium-range engagements, especially when paired with a Sniper Rifle or Marksman Rifle.
Optimal LC10 Class Setup with the Monolithic Suppressor
To maximize the benefits of the Monolithic Suppressor, you need to select the other attachments that compensate for its minor drawbacks and lean into the LC10's strengths. This build focuses on maximizing mobility, stability, and range for a truly dominant stealth loadout.
The "Silent Hunter" LC10 Loadout
The following attachments are highly recommended for a balanced, high-performance LC10 build in *Warzone*:
- Muzzle: Monolithic Suppressor (Crucial for stealth and range)
- Barrel: 13.9" Task Force (Maximizes damage range and bullet velocity, compensates for the suppressor's range loss)
- Stock: No Stock (Significantly boosts movement speed and Sprint-to-Fire time, essential for an aggressive SMG playstyle)
- Ammunition: 50 Round Magazine (Crucial for fighting multiple enemies in a squad; the 45-round is an acceptable alternative)
- Underbarrel: Field Agent Grip (Provides significant vertical and horizontal recoil control, stabilizing the weapon for mid-range fights)
Key Entities and Components
Mastering the LC10 requires familiarity with its core components and the game's mechanics. The Monolithic Suppressor works in synergy with the following entities to create a lethal weapon:
- LC10 SMG: The base weapon, known for its high fire rate and low recoil.
- Gunsmith: The in-game system where all attachments are customized.
- Muzzle Attachment: The specific slot for the Monolithic Suppressor.
- 13.9" Task Force Barrel: The best barrel to maximize damage range.
- Field Agent Grip: The key Underbarrel for recoil mitigation.
- Stealth: The primary tactical advantage gained from the suppressor.
- Damage Range: The key statistic boosted by the Monolithic design.
- Recoil Control: Necessary to counteract the minor stability loss.
- Armory Unlock System: The current, permanent method for acquiring the attachment.
- Daily Challenges: The tasks used to progress the Armory Unlock.
- Black Ops Cold War: The original game the LC10 is from.
- Warzone: The primary game mode where this stealth build excels.
- Modern Warfare III (MWIII): The current engine and system hosting the Armory Unlock feature.
- Bullet Velocity: A hidden stat improved by the Task Force Barrel and Monolithic Suppressor.
- Sprint-to-Fire Time: The speed at which you can shoot after sprinting, improved by the 'No Stock' option.
- Legacy Item: The categorization of the LC10 and its attachments in the current game.
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