The latest weekly refresh in Call of Duty: Modern Warfare 3 has brought back a piece of iconic weaponry that's sending shockwaves through the community. The legendary lever-action power of the Model 1887s is now accessible, and veterans know exactly what that means: pure, unadulterated carnage. By tackling just five of this week's freshly dropped challenges, players can unlock the JAK Wardens Conversion Kit for the Lockwood MK2, effectively transforming a standard marksman rifle into a dual-wielded shotgun nightmare. The unlock path spans across core Multiplayer, the undead hordes of MWZ, and the sprawling battlegrounds of Warzone, so there's a route for every type of operator. But a word of warning: this kit isn't just a fun throwback—it's currently reshaping the meta with what many are calling a brokenly powerful hipfire spread.

After completing any five challenges from the Week 5 roster, the JAK Wardens Kit for the Lockwood MK2 is yours. This conversion morphs the lever-action rifle from MW2 into a proper akimbo, lever-action shotgun, a direct homage to the infamous Model 1887s of 2009's Modern Warfare 2. The nostalgia factor is high, but the performance is what's truly turning heads. As of 2026, the gun's hipfire accuracy is in a league of its own. When equipped with specific attachments like the Verdant Hook laser and Crown Breaker Choke, the gun achieves a base hipfire accuracy of 0°. Yes, you read that right—zero degrees. This translates to one-hit-kill potential from roughly 12 meters without even aiming down sights. Slap on some Ball ammo, and you can surprisingly challenge enemies from over 50 meters away. The community consensus? This setup is undoubtedly S-tier for Multiplayer, though most expect a balancing nerf to arrive sooner rather than later. Get your shotgun dominance in while you can!
Multiplayer Mayhem Challenges 🎯

Ready to rack up some XP and work towards that kit? Here’s the full breakdown of the Week 5 Multiplayer challenges. Remember, you only need five total from any game mode!
| Challenge | XP Reward |
|---|---|
| Get 25 kills with Akimbo recommended weapons. | 2,500 XP |
| Get 15 tac stance kills with recommended marksman rifles. | 5,000 XP |
| Get 15 clean kills (no damage taken) with recommended marksman rifles. | 5,000 XP |
| Get 15 hipfire clean kills with recommended shotguns. | 5,000 XP |
| Get 25 one-hit kills while ADS with recommended shotguns. | 7,500 XP |
| Get 20 double kills with recommended marksman rifles. | 7,500 XP |
| Get 10 triple kills with recommended shotguns. | 10,000 XP |
🔥 Pro-Tips for MP:
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Big News: The marksman rifle challenges do NOT actually require a 'recommended' weapon! You can complete the tac stance, clean kill, and double kill objectives using any marksman rifle, like the DM56 with a conversion kit.
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How do you spot a 'recommended' weapon? Look for the flaming icon next to it in the Create-A-Class menu.
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For 'clean kills,' play a bit more cautiously—you must eliminate an enemy without them damaging you first. Camping a high-traffic lane with a sniper or marksman rifle can work wonders.
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The shotgun challenges are perfect for small, chaotic maps. Shipment 24/7 is your best friend here.
Zombies (MWZ) Undead Gauntlet 🧟

Prefer to test your might against the undead? The MWZ challenges offer a great alternative path, especially if you enjoy high-volume zombie slaying.
| Challenge | XP Reward |
|---|---|
| Kill 750 zombies while ADS with a recommended weapon. | 2,500 XP |
| Land 200 critical kills with a recommended marksman rifle. | 5,000 XP |
| Get 10 kills without taking damage with a recommended marksman rifle 30 times. | 5,000 XP |
| Get 150 critical kills with a recommended shotgun while Deadshot Daiquiri is active. | 5,000 XP |
| Get 250 one-hit kills with a recommended Pack-A-Punched shotgun. | 7,500 XP |
| Kill 5 Manglers with a recommended marksman rifle. | 7,500 XP |
| Get 5 rapid kills (within 2 seconds) 20 times with a recommended shotgun. | 10,000 XP |
🧠 MWZ Strategy Corner:
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Shotgun Route Recommended: Many players find the shotgun challenges faster. Grab a Haymaker, equip Slug ammunition, and then Pack-A-Punch it. This combo turns it into a headshot-seeking powerhouse, making the critical kill and one-hit kill challenges a breeze.
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Deadshot Daiquiri is Key: For the shotgun critical kill challenge, this perk is non-negotiable. It auto-aims to critical points, making those 150 headshots fly by.
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Mangler Hunting: Manglers spawn more frequently in higher threat zones. Bring a powerful, single-shot marksman rifle to take them down efficiently for that challenge.
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Pentakill Precision: The '5 rapid kills' challenge is strict—all five kills must occur within a two-second window. Your best bet is to find a dense horde, throw a decoy or monkey bomb to group them up, and then unleash a packed shotgun or explosive.
Warzone & Rebirth Island Objectives 🌍

For the Battle Royale specialists, Week 5 brings a mix of general looting and very specific location-based eliminations, primarily focused on the fan-favorite Rebirth Island.
| Challenge | XP Reward |
|---|---|
| In Warzone, open 50 loot caches. | 2,500 XP |
| In Rebirth Island, get 10 kills in the northwest (Dock, Control Center). | 5,000 XP |
| In Rebirth Island, get 10 kills in the southeast (Stronghold, Living Quarters). | 5,000 XP |
| In Warzone, revive a teammate 10 times. | 5,000 XP |
| In Rebirth Island, get 10 kills in the northeast (Bioweapons, Harbor, Chemical Eng.). | 7,500 XP |
| In Rebirth Island, get 10 kills in the center (Prison HQ, Factory). | 7,500 XP |
| In Warzone, place in the top ten 5 times. | 10,000 XP |
🎮 Warzone Wisdom:
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Location, Location, Location: The operator kill challenges must be completed on Rebirth Island. If you're dropping into Fortune's Keep or Urzikstan, those kills won't count. Focus your drops on the named regions.
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Efficient Revives: Need to get those 10 revives? Skip the stressful Battle Royale modes. Jump into Plunder or any other respawn-enabled mode where you can pick up teammates repeatedly without the finality of a full death.
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Loot Cache Spree: The 50 cache challenge is perfect for Plunder or even a few cautious BR matches. Land in less-populated areas and sweep buildings clean.
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Top Ten Placement: For the top ten challenge, consider a more passive, position-focused strategy. Playing for position in Solos or with a communicative squad in Quads can get this done in a handful of matches.
So there you have it, soldiers! The path to the potentially game-breaking JAK Wardens Kit is laid out before you. Whether you're a run-and-gun MP slayer, a methodical zombie annihilator, or a strategic Warzone veteran, there's a set of challenges you can tackle. The kit's current state offers a uniquely powerful and nostalgic playstyle that's an absolute blast to use. Dive in, complete those five challenges, and experience the lever-action shotgun dominance for yourself—before the inevitable patch arrives! 🚀