How to Get JAK Thumper-656 in MW3 and Warzone

The JAK Thumper-656 is a new aftermarket part introduced in Call of Duty: Modern Warfare 3 and Warzone Season 4 that provides more ammunition types for the RGL-80 grenade launcher. Here’s how to get the JAK Thumper-656 in MW3 and Warzone.

How to unlock JAK Thumper-656 in MW3 and Warzone

MW3 Warzone JAK Thunderer-656Prima Games Screenshots

The JAK Thumper-656 can be unlocked by completing all five challenges in Week 4 of Season 4. The weapon will be available to players through weekly challenges until the end of Season 4, and will be available from the Armory after the season ends.

There are a total of 21 challenges to complete in Week 4, covering MW3 Multiplayer, Zombies, and Warzone modes. Simply completing five of the Week 4 batches will unlock the JAK Thumper-656. Call of Duty: Warzone Mobile players must spend Armory Coins at the Armory Store to unlock aftermarket parts.

Here are all the challenges you can complete in Season 4, Week 4:

MW3 Multiplayer

  • Kill 20 Operators using explosive ammunition
  • Kill 10 operators who are blinded or unconscious
  • Kill 10 Operators using a Bomb Drone or Mosquito Drone
  • Destroy eight aerial kill streaks
  • Topped the charts three times
  • Kill three operators after dying
  • Get a double kill on three operators using grenades or launchers

MW3 Zombies

  • Kill 300 people with Frost damage using recommended weapons
  • Deal 300 fire damage kills with recommended weapons
  • Perform 300 explosive damage kills with recommended weapons
  • Kill 50 people with the recommended melee weapons while the Berserker Guard is active
  • Destroy 15 anti-drones in the mercenary camp
  • Kill five people five times with Monkey Bomb
  • Kill two Warlords using the recommended weapons

COD Warzone

  • In the Urzikstan war zone, open 20 loot caches in the northwest area (resorts, power, seaports, cargo)
  • In the Urzikstan war zone, open 20 loot caches in the southern regions (cities, suburbs, estates)
  • In the Urzikstan war zone, open 20 loot caches in the eastern regions (military bases or farms)
  • In the Urzikstan war zone, open 20 loot caches in the central area (Old Town, Lower Town)
  • In Warzone, get five top ten finishes
  • Complete 15 contracts in Warzone
  • In Warzone, get 10 Operator kills or assists using recommended weapons

For more on Modern Warfare 3 and Warzone Season 4, check out how to get the JAK Scimitar Kit to give the excellent FJX Horus SMG a better stat boost.

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