Updated on June 27, 4:55 p.m. (GMT+8): Added list of challenges to unlock the weapon.

The Sledgehammer, a brutal new melee weapon, awaits those willing to put in the work in Modern Warfare 3 and Warzone.

This weapon arrives in the Season 4 Reloaded update, along with the Reclaimer 18 shotgun.

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Credit: ONE Esports, Activision
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In this ONE Esports guide, we provide details on obtaining the Sledgehammer so you can start whacking your enemies’ heads.

Here’s how to get Sledgehammer in MW3 and WZ

Activision provides this detailed description of the new hammer claw bar weapon:

“This bludgeoning behemoth isn’t designed for driving nails into wood. With a 20-pound head forged from carbon steel, beveled so the weapon doesn’t chip when striking, this monster of a melee weapon can inflict massive blunt force damage quickly, knock a foe back with a pole butt, or cause more monumental damage after a brief pause and a swing.”

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You can unlock the Sledgehammer by completing five of the 21 weekly challenges across Multiplayer, Warzone, and Zombies in season 4 week 5.

MW3 SEASON 4 WEEK 5 CHALLENGES (MULTIPLAYER)MULTIPLAYER SEASON 4 WEEK 5 CHALLENGESZOMBIES SEASON 4 WEEK 5 CHALLENGES
Get 30 Operator AssistsIn Warzone Fortune’s Keep, get 10 Operator Kills in the North RegionComplete 10 contracts
Get 10 Operator Kills with the gun-butt of a recommended weaponIn Warzone Fortune’s Keep, get 10 Operator Kills in the West RegionGet 75 kills with the gun-butt of a recommended weapon
Get 15 Operator One Shot One Kills with recommended shotgunsIn Warzone Fortune’s Keep, get 10 Operator Kills in the East RegionGet 250 One Shot, One Kills with a Pack-a-Punched recommended shotgun
Get 12 Operator Kills with claymores, proximity mines, or C4In Warzone Fortune’s Keep, get 10 Operator Kills in the South RegionGet 75 kills with claymores, proximity mines, or C4
Perform three Finishing Moves on enemy OperatorsIn Warzone, place in the top 10 five timesPerform five Finishing Moves on Mercs
Get three Operator Melee Double KillsIn Warzone, complete 10 contractsGet 10 kills without being hit 20 times with a recommended melee weapon
Get two Operator Fury Kills with a recommended weaponIn Warzone, open 50 loot cachesGet five rapid kills 30 times with a recommended assault rifle
Credit: Activision, ONE Esports
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To efficiently complete your weekly tasks, it’s advisable to play in Multiplayer or Zombies mode, and tackle challenges that involve operator or zombie kills.

Warzone, however, poses a more significant challenge, as scoring kills and fulfilling objectives in this mode is more difficult compared to Multiplayer and Zombies.

READ MORE: All Modern Warfare 3 Fallout Vault Dwellers event challenges and rewards