Season 3 Reloaded in Call of Duty: Modern Warfare 3 brings a fresh Aftermarket Part into the mix for Week 6: the JAK Atlas Kit for the AMR9. This nifty conversion transforms the speedy SMG into a five-round burst rifle packing 5.56 NATO rounds. While it offers a potential one-burst kill within 15 meters β making its close-quarters TTK (Time to Kill) pretty sweet β it falls off hard outside that range or if you miss shots, requiring two bursts and drastically slowing you down. Overall, it's a bit of a mixed bag; fun to try, but likely not meta-defining for serious MP, Warzone, or Zombies play. Unlocking it requires completing any five challenges from this week's slate across Multiplayer, MWZ, or Warzone. Let's break down how to get this done efficiently.

π« Multiplayer Challenges: Grind Smart, Not Hard
Ready for some sweaty matches? Hereβs the lowdown on this weekβs MP challenges. Remember, "recommended" weapons sport a flame icon in Create-A-Class.
| Challenge | XP Reward |
|---|---|
| Get 15 headshot kills with recommended battle rifles. | 2,500 XP |
| Get 25 kills with sights equipped to a recommended SMG. | 5,000 XP |
| Get 20 kills while moving and ADS with a recommended battle rifle. | 5,000 XP |
| Get 15 hipfire kills with a suppressed recommended SMG. | 5,000 XP |
| Get 25 kills with any recommended weapon set to semi-auto. | 7,500 XP |
| Get 15 quickscope kills with the MCW. | 7,500 XP |
| Get 15 one-hit kills with a suppressed KATT-AMR. | 10,000 XP |
Pro Tips:
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Headshots & Moving ADS: Hardcore mode is your best friend here. Enemies go down easier, making headshots and one-hit KATT kills a breeze. For moving ADS, strafe constantly!
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Hipfire & Suppressed SMGs: Slap a laser and suppressor on a close-range SMG like the WSP Swarm and play aggressive on small maps (Shipment, anyone?). Spray and pray!
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Semi-Auto & Quickscopes: Any recommended weapon with a semi-auto option works. For MCW quickscopes, aim for quick scopes within one second of ADS β practice makes perfect. Don't camp!
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Easy Picks: The "kills with sights" and "semi-auto kills" challenges are generally the easiest to knock out casually. No sweat!

π§ Zombies (MWZ) Challenges: Embrace the Horde
Time to slay some undead (and mercs) in the Dark Aether. Pack your best recommended gear!
| Challenge | XP Reward |
|---|---|
| Get 200 critical kills while ADS with a recommended assault rifle. | 2,500 XP |
| Kill 75 mercenaries with a recommended sniper. | 5,000 XP |
| Get 300 kills with a recommended battle rifle while Stamin-Up is active. | 5,000 XP |
| Kill 750 zombies with a recommended SMG. | 5,000 XP |
| Kill 30 riot shield mercenaries with a recommended weapon. | 7,500 XP |
| Get 5 rapid kills 20 times with a recommended battle rifle. | 7,500 XP |
| Get 200 kills with a recommended Pack-A-Punched SMG in the High Threat Zone. | 10,000 XP |
Pro Tips:
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Critical Kills & Stamin-Up Grind: Aim for the head! Farm low-tier zones with an ADS AR. Activate Stamin-Up (buy it or find it) and mow down zombies in Tier 1 with a battle rifle β easy peasy.
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Mercenary Mayhem: Head to Mercenary Strongholds (marked on map) for shield mercs and regular mercs. Snipers work well from a distance for the 75 mercs. Use thermites or Semtex behind riot shielders!
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Horde Clearance: The 750 SMG zombie kills and 5 rapid kills (x20) are best done in Outlast contracts or near Exfils in lower tiers. Spray away!
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High Threat Zone: This is the scary red zone! Pack-A-Punch your SMG at least once. Stick to the outskirts of Tier 2 zones initially for slightly safer SMG grinding. Don't bite off more than you can chew!

π Warzone Challenges: Squad Up & Loot Fast
Drop into Urzikstan or Rebirth Island (specifically needed for some!) for these objectives. Teamwork makes the dream work!
| Challenge | XP Reward |
|---|---|
| In Warzone, perform a squad assemble 5 times. | 2,500 XP |
| In Warzone Rebirth Island, open 20 loot caches in the northwest region (Dock, Control Center). | 5,000 XP |
| In Warzone Rebirth Island, open 20 loot caches in the southeast region (Stronghold, Living Quarters). | 5,000 XP |
| In Warzone, complete 15 Contracts. | 5,000 XP |
| In Warzone Rebirth Island, open 20 loot caches in the northeast region (Bioweapons Industries, Harbor, Chemical Eng.). | 7,500 XP |
| In Warzone Rebirth Island, open 20 loot caches in the center region (Prison Headquarters, Factory). | 7,500 XP |
| In Warzone, place in the top ten 5 times. | 10,000 XP |
Pro Tips:
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Squad Assemble: Jump together! Agree on a drop spot and ensure all squad members land very close to each other at the start of a match. Rinse and repeat.
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Loot Cache Bonanza: Heads-up! The NW, SE, NE, and Center cache challenges require Rebirth Island. Plunder mode is the MVP here. You respawn infinitely, letting you focus solely on sprinting through the named areas opening every crate you see. Forget fighting, just loot!
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Contracts: Focus on easy ones like Safecracker, Scavenger, or Intel contracts in standard Battle Royale or Plunder. 15 goes fast in Plunder.
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Top Ten: Play cautiously in standard BR Solos, Duos, or Quads. Land semi-hot for early gear, then play the edge of the circle. Camping works, but don't be that guy forever. Rebirth Island Resurgence modes also make hitting top ten more manageable.

π Final Thoughts: Get That Kit!
While the JAK Atlas Kit might not be the most OP attachment dropping jaws in Season 3 Reloaded, it's a unique playstyle change for the AMR9 worth experimenting with, especially in close-quarters MP maps. The key to unlocking it efficiently is mixing and matching the easiest challenges across modes.
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MP Focus: The "sights equipped SMG" and "semi-auto recommended weapon" kills are low-hanging fruit.
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MWZ Focus: The "critical kills with AR" and "zombie kills with SMG" are straightforward horde-clearing tasks.
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Warzone Focus: "Squad Assemble" is instant if coordinated, and Plunder makes the Rebirth cache challenges surprisingly quick (though repetitive).
Pick your poison, squad up if needed, and get grinding! Remember, five challenges down, and that burst-fire SMG variant is yours. Good luck out there, Operators β make every burst count! π₯