MW3 Season 4 Week 4: Unlocking the JAK Thumper & Surviving the Grind

Season 4's explosive JAK Thumper-656 Kit for the RGL-80 revolutionizes Modern Warfare 3 with unprecedented launcher attachments. Earn this game-changing reward by completing any five of Week 4's thrilling multiplayer, Zombies, or Warzone challenges.

Alright, soldiers, gather 'round! It's 2025, and Season 4 of Modern Warfare 3 is still throwing wild weekly challenges at us like confetti at a victory parade. Week 4 is here, and the prize? Oh, just the JAK Thumper-656 Kit for the RGL-80. You read that right! Finally, our beloved 'noob tube' gets some fancy attachments. But Activision, bless their hearts, ain't just handing it out. Nope, you gotta earn it by completing any five of this week's frankly interesting challenges across Multiplayer, Zombies, or Warzone. Feeling lucky, punk? Let's dive into this glorious mess, shall we?

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💥 The Sweet, Explosive Reward: JAK Thumper-656 Kit

So, you suffer through five challenges – any five, mix and match playlists like a mad scientist – and bam! The JAK Thumper is yours. This kit slaps onto the RGL-80, making it the first launcher in MW3 history to actually have attachments. Revolutionary! What's the catch? Well, say goodbye to snappy ADS and quick sprint-to-fire times. It's gonna feel like you're hauling a sack of potatoes. But hey, you get three new ways to ruin someone's day:

  • 40mm Slug: Forget explosions! This is basically a giant, slow-mo bullet. Two hits anywhere on the body? Done. Precision? Not so much. It's like throwing bricks.

  • 40mm Sticky: Ever wanted to play explosive tag? Stick this bad boy to a wall, a tank, or that annoying camper... wait patiently... BOOM! Delayed gratification at its finest.

  • 40mm Drill Charge: Remember the Drill Charge lethals? Yeah, this is that, but launched! Stick it, it burrows through cover like a mole on steroids, then detonates on the other side. Perfect for flushing out rats in holes.

Worth the grind? Honestly, who cares? It's a launcher with attachments! That alone makes it a must-have for the collection. Now, onto the pain... I mean, the challenges!

🔫 Multiplayer Mayhem: Stuns, Explosions & Leaderboard Egos

Okay, who at Sledgehammer HQ thought Get 10 kills against operators who are stunned or blinded was a fun idea? Seriously? Time to dust off those Flashbangs and Stun Grenades and pray your teammates don't steal the kill. Good luck!

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Here's the full list of MP headaches:

Challenge XP Reward My Sarcastic Tip
Get 10 kills against stunned/blinded operators 2,500 XP Spam stuns like it's going out of fashion. Pray.
Get 20 kills with explosive ammo 5,000 XP Shotguns & Snipers often have this. Embrace the chaos.
Get 10 kills with a Bomb Drone or Mosquito Drone 5,000 XP Become that player. Hide in a corner, giggle maniacally.
Destroy 8 aerial killstreaks 5,000 XP Carry a PILA. Look up. A lot.
Place top of the leaderboard 3 times 7,500 XP Play objective modes hard, or just be really sweaty.
Get 3 kills after death 7,500 XP Proximity Mines or C4 are your best friends here. Set traps!
Get 3 double kills with grenades or launchers 10,000 XP Hardcore mode is your savior. Frag out on small maps!

Pro Tip for MP Grind: Hardcore mode is practically mandatory for those grenade double kills. Everything dies faster, including your patience. Also, for kills after death? Mines, mines, mines. Be sneaky!

🧟 Zombie Apocalypse: Ammo Mods & Monkey Business

MWZ this week is all about... ammo mods. Lots and lots of ammo mod kills. Feeling frosty? Fiery? Shattery? You better be!

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Check out the undead to-do list:

Challenge XP Reward My Undead Advice
Get 300 kills with Cryo Freeze ammo 2,500 XP Freeze 'em solid! Contracts & Strongholds are your source.
Get 300 kills with Napalm Burst ammo 5,000 XP Burn, baby, burn! Crafting schematic helps if you have it.
Get 300 kills with Shatter Blast ammo 5,000 XP Make 'em go boom! See above re: sources.
Destroy 15 Counter UAVs in mercenary camps 5,000 XP Merc Camps = Guaranteed Counter UAV spawns. Easy peasy.
Get 2 Warlord kills with a recommended weapon 7,500 XP Pack-a-Punch that recommended gun first! Don't be a hero.
Get 50 melee kills with recommended weapon + Frenzied Guard 7,500 XP Gladiator or Karambit + Frenzied Guard = Zombie blender.
Get 5 kills with a Monkey Bomb 5 times 10,000 XP Toss, wait for the crowd, enjoy the show! Repeat.

Pro Tip for MWZ Grind: Those ammo mods? You get them from Contracts, Infested Strongholds, or craft them if you're lucky enough to have the schematic. For melee kills, the MW3 Gladiator or Karambit are your go-to butter knives. And Warlords? Bring friends. Seriously.

🌎 Warzone Woes: Loot Goblin Simulator 2025

Warzone challenges this week scream one thing: LOOT EVERYTHING. Specifically, loot caches in very specific parts of Urzikstan. Get ready for a marathon, not a sprint.

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Here's your Battle Royale scavenger hunt:

Challenge XP Reward My Survivalist Suggestion
Get 10 kills/assists with a recommended weapon 2,500 XP Pick a meta gun. Shoot people. Simple!
Open 20 NW Urzikstan caches (Resort, Power, Seaport, Cargo) 5,000 XP Become a tourist. Avoid fights. Just loot!
Open 20 S Urzikstan caches (City, Suburbs, Manor) 5,000 XP More looting! Maybe bring a podcast?
Complete 15 Contracts 5,000 XP Safecracker, Intel, Bounty... just do 'em all!
Open 20 E Urzikstan caches (Military Base, Farms) 7,500 XP High risk (Military Base), high reward (caches).
Open 20 Central Urzikstan caches (Old Town, Low Town) 7,500 XP The final looting frontier. You're basically a raccoon now.
Place in the top ten 5 times 10,000 XP Play it safe, rotate early, hide if you must!

Pro Tip for Warzone Grind: Forget winning, embrace the looting! Drop slightly off the beaten path in the required regions. Plunder mode is excellent for the looting and contract challenges – respawns mean you can just keep going. For top 10 placements? Play cautious, avoid hot drops, and maybe let other teams fight it out first. Camping is valid for this one, folks! 😉

🎯 Final Verdict: Is the JAK Thumper Worth It?

Look, grinding five challenges might feel like homework, especially those 300-kill ammo mod ones in Zombies or the insane looting spree in Warzone. But c'mon! It's a launcher with attachments! That's like finding a unicorn riding a dinosaur. The novelty factor alone is off the charts. The 40mm Drill Charge especially looks like pure, unadulterated fun for breaching campers. Is it meta-breaking? Probably not. Is it going to make you cackle with glee when you stick it to someone through a wall? Absolutely. So grab your stun grenades, load up on Cryo Freeze ammo, or channel your inner loot gremlin, and get those five challenges done, soldier! That explosive goodness isn't gonna unlock itself. See you on the (sticky, drill-charged) battlefield! 💥