How to Get JAK Thumper-656 in MW3 and Warzone

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

How to Unlock JAK Thumper-656 in MW3 and Warzone

The JAK Thumper-656 can be unlocked by completing five Season 4 Week 4 challenges. It will be available to unlock through weekly challenges until Season 4 ends, then players will have to unlock it from the Armory once the season is over.

There are a total of 21 Week 4 challenges to be completed among MW3 multiplayer, Zombies, and Warzone modes. Only five from the Week 4 batch need to be completed to unlock the JAK Thumper-656. Call of Duty: Warzone Mobile players will have to spend Arsenal Coins in the Arsenal Store to unlock the Aftermarket Part.

Here are all the Season 4 Week 4 challenges that can be completed:

MW3 Multiplayer

• Get 20 Operator kills while using explosive ammo
• Get 10 kills against Operators who are blinded or stunned
• Get 10 Operator kills with a Bomb Drone or Mosquito Drone
• Destroy eight aerial killstreaks
• Place top of the leaderboard three times
• Get three Operator kills after death
• Get three Operator double kills with grenades or launchers

MW3 Zombies

• Get 300 kills with Frost damage with a recommended weapon
• Get 300 Fire damage kills with a recommended weapon
• Get 300 Explosive damage kills with a recommended weapon
• Get 50 kills with a recommended melee weapon while Frenzied Guard is active
• Destroy 15 Counter-UAVs in Mercenary camps
• Get five kills with a Monkey Bomb five times
• Get two Warlord kills with a recommended weapon

COD Warzone

• In Warzone Urzikstan, open 20 loot caches in the North-West Region (Resort, Power, Seaport, Cargo)
• In Warzone Urzikstan, open 20 loot caches in the Southern Region (City, Suburbs, Manor)
• In Warzone Urzikstan, open 20 loot caches in the Eastern Region (Military Base or Farms)
• In Warzone Urzikstan, open 20 loot caches in the Central Region (Old Town, Low Town)
• In Warzone, place in the top 10 five times
• In Warzone, complete 15 contracts
• In Warzone, get 10 Operator kills or kill assists with a recommended weapon

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