Call of Duty: Modern Warfare 3 is wrapping up its fourth season with a select few conversion kits that are tied to the Weekly Challenges system. Each week has 21 associated challenges to complete. Finish any five of them, and you'll walk away with a new conversion kit or weapon outright.

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This week's reward is a conversion kit for the Basilisk, an MW2 revolver that turns into a .357 magnum. Fans of fast-firing secondaries might want to give this attachment a try, but you'll need to unlock it first. Let's go over all of the challenges available this week and how to complete them as quickly as possible.

Week 7 Challenge Reward

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This week's reward is the JAK Gunslinger Kit for the Basilisk, which can be obtained by completing any five of this week's challenges. While installed, the Basilisk benefits from significantly less recoil, better hipfire accuracy, slightly better handling, and a faster fire rate of 400 RPM. This comes at the cost of overall damage and effective range, turning this weapon into a two-hit kill.

Additionally, you cannot use ammunition, trigger, or loader attachments while this aftermarket part is installed. For optimal results, spec this weapon for fast draw time or akimbo.

Multiplayer Challenges

Multiplayer Challenges

Challenge

XP Reward

Get 25 akimbo kills with a recommended weapon.

2,500 XP

Get 10 clean kills with iron sights equipped to a recommended marksman rifle.

5,000 XP

Get 15 kills with a suppressed recommended handgun.

5,000 XP

Get 15 headshot kills with a recommended handgun.

5,000 XP

Get 10 clean kills with recommended handguns.

7,500 XP

Get 5 kills while sliding or midair with the JAK Scimitar aftermarket part equipped to the FJX Horus.

7,500 XP

Get 3 kills in one magazine 5 times with recommended handguns.

10,000 XP

Tips

  • Use the Kar98K or the kVD Enforcer for the marksman rifle challenge.
  • The JAK Scimitar Kit is unlocked from the Weekly Challenges system (week 3).
  • Clean kills occur when you eliminate a target without receiving damage.
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Zombies Challenges

MWZ Challenges Challenge XP Reward Get 150 akimbo kills with a recommended weapon. 2,500 XP Get 75 clean kills with iron sights equipped to a recommended marksman rifle. 5,000 XP Get 75 kills with a suppressed recommended handgun. 5,000 XP Get 75 critical kills with a recommended handgun. 5,000 XP Get 250 critical kills with a recommended handgun. 7,500 XP Get 250 critical kills with the JAK Scimitar aftermarket part equipped to the FJX Horus. 7,500 XP Get 5 kills with one magazine 10 times with recommended handguns. 10,000 XP

Tips

  • Use the COR-45 with its conversion kit for the handgun challenges.
  • Use the Kar98K for the clean kill challenges.
  • The JAK Scimitar Kit is unlocked from the Weekly Challenges system (week 3).

Warzone Challenges

Battle Royale Challenges

Challenge

XP Reward

Open 30 loot caches.

2,500 XP

In Urzikstan, get 10 operator kills in the northwest region (Resort, Power, Seaport, Cargo).

5,000 XP

In Urzikstan, get 10 operator kills in the southern region (City, Suburbs, Manor).

5,000 XP

Complete 5 contracts in Warzone.

5,000 XP

In Urzikstan, get 10 operator kills in the eastern region (Military Base or Farms).

7,500 XP

In Urzikstan, get 10 operator kills in the central region (Old Town, Low Town).

7,500 XP

In Warzone, place in the top ten 3 times.

10,000 XP

Tip

  • The elimination challenges must be completed in Urzikstan.
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