Call of Duty: Modern Warfare 3 has released its sixth set of weekly challenges during its first season. Each week, a new series of challenges are added to Multiplayer, MWZ, and Warzone. Completing a total of five challenges across all three modes will award a new attachment, aftermarket part, or even a new weapon.

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This week's challenges encourage players to use the AMR9 SMG and any MW3 LMG. Complete enough challenges, and you'll be awarded with the double-barrel conversion kit for the AMR9. This guide will cover every challenge added this week, give some tips on how to best complete each one, and briefly explain how the AMR9 conversion kit works.

Week 6 Challenge Reward

This week's reward is The Ettin Aftermarket Part. This is a conversion kit for the AMR9 SMG that installs a second barrel onto the weapon, converting the weapon into a two-round burst SMG that fires its bursts automatically. In other words, it behaves identically to the base version with an added burst delay (roughly 7ms).

Unfortunately, this attachment offers no RPM boost, damage changes, or notable accuracy improvements. This conversion kit actually reduces your accuracy significantly, adding some serious accuracy deviation with each shot. It's nigh-unusable past 25 meters, even with multiple accuracy attachments installed. In general, we recommend you avoid using this attachment.

Multiplayer Challenges

Multiplayer Challenges

Challenge

XP Reward

Get 30 hipfire kills with a recommended weapon.

2,500 XP

Get 5 kills after reloading with a recommended LMG.

5,000 XP

Get 10 double kills with a recommended SMG.

5,000 XP

Get 10 double kills with a recommended LMG.

5,000 XP

Get 15 point-blank kills with the AMR9.

7,500 XP

Get 30 kills while moving with the AMR9.

7,500 XP

Get 3 kills without dying 5 times with recommended SMGs.

10,000 XP

Tips

  • Use the AMR9 to complete the SMG and AMR challenges simultaneously.
  • For the LMG challenges, try the TAQ Eradicator or the DG-58 LSW with its conversion kit.
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Zombies Challenges

MWZ Challenges

Challenge

XP Reward

Get 500 hipfire kills with a recommended weapon.

2,500 XP

Get 150 kills with a recommended LMG while Brain Rot ammo is installed.

5,000 XP

Get 5 rapid kills 15 times with a recommended SMG.

5,000 XP

Get 5 special zombie kills with a recommended LMG.

5,000 XP

Get 300 kills with the AMR9 while using 5 attachments.

7,500 XP

Get 300 kills while moving with the AMR9.

7,500 XP

Get 10 consecutive kills without taking damage 20 times with a recommended SMG.

10,000 XP

Tips

  • Use the WSP Swarm with its akimbo conversion kit for easy hipfire kills.
  • Zombies make a loud groan when behind you. Keep this in mind while attempting the last challenge.

Warzone Challenges

Battle Royale Challenges

Challenge

XP Reward

Get 40 kills or assists with a recommended weapon.

2,500 XP

In Urzikstan, open 20 normal or legendary chests in the northwest region (Resort, Power, Seaport, Cargo).

5,000 XP

In Urzikstan, open 20 normal or legendary chests in the southern region (City, Suburbs, Manor).

5,000 XP

Complete 15 contracts in Warzone.

5,000 XP

In Urzikstan, open 20 normal or legendary chests in the eastern region (Military Base or Farms).

7,500 XP

In Urzikstan, open 20 normal or legendary chests in the central region (Old Town, Low Town).

7,500 XP

Tips

  • Recommended weapons consist of all MW3 weapons.
  • Chests emit an audible noise when nearby. Keep your ears open for a hum while looting.
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