Call of Duty: Modern Warfare 3's third season has released its fourth set of Weekly Challenges. For the first eight weeks of a given season, a new set of challenges are released for Multiplayer, Zombies, and Warzone. Completing any five of these challenges will unlock an exclusive reward, usually an aftermarket part or a unique weapon blueprint.

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This week's reward is the JAK Revenger Kit, a conversion kit for the BP50 that turns it into a powerful SMG that is ideal for aggressive playstyles. This guide will briefly go over how this conversion kit works; then we'll explain how to complete all of this week's challenges as quickly as possible.

Week 4 Challenge Reward

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After you complete any five of this week's challenges, you'll unlock the JAK Revenger Kit for the BP50. This converts the weapon into a 9mm SMG with absurdly good mobility stats, a fire rate of 983 RPM, and better handling stats. This does come at the cost of effective range and reload speed, although the latter is understandable since this attachment gives you a 60 Round Drum for free.

Since the BP50 was already a rather aggressive assault rifle, this conversion kit is a straight upgrade for virtually every build. This conversion kit does lock your barrel, stock, comb, and underbarrel attachments, but the stat bonuses on offer more than compensate for this. If you tend to use the BP50 up close, the JAK Revenger KIt is absolutely worth getting.

Multiplayer Challenges

Multiplayer Challenges

Challenge

XP Reward

Get 30 kills with alternate ammo equipped to a recommended weapon.

2,500 XP

Get 20 hipfire kills while moving with recommended SMGs.

5,000 XP

Get 20 kills while ADS with a suppressed recommended SMG.

5,000 XP

Get 15 kills while sliding or midair with a recommended weapon.

5,000 XP

Get 10 longshot kills with recommended assault rifles.

7,500 XP

Get 3 kills in one magazine 10 times with recommended assault rifles.

7,500 XP

Get 20 kills shortly after sprinting with a recommended assault rifle equipped with 5 attachments.

10,000 XP

Tips

  • Recommended weapons have a flaming icon beside them in the Create-A-Class menu.
  • For the sliding/midair challenge, the kill must be landed while you're actively sliding or midair. Doing so after a slide or jump won't count.
  • You can use any attachments on your AR to complete the final challenge.
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Zombies Challenges

MWZ Challenges

Challenge

XP Reward

Destroy 25 vehicles with a recommended weapon.

2,500 XP

Get 300 hipfire kills with a recommended SMG.

5,000 XP

Get 150 Cryofreeze kills with a recommended SMG.

5,000 XP

Get 750 kills with a recommended Pack-A-Punched SMG.

5,000 XP

Get 300 kills with a recommended assault rifle in the Medium Threat Zone.

7,500 XP

Get 5 rapid kills 20 times with a recommended assault rifle.

7,500 XP

Get 250 kills with a recommended assault rifle while affected by 4+ perks.

10,000 XP

Tips

  • Cryofreeze kills occur when you install Cryofreeze ammo on your weapon. Use it on your SMG to get Cryofreeze kills.
    • We cover ammo types and similar upgrades in our MWZ guide.
  • The Medium Threat Zone is the yellow region of the map.
  • We recommend you start a match with an AR or SMG, both if possible. This will let you complete most of these challenges in a single match.

Warzone Challenges

Battle Royale Challenges

Challenge

XP Reward

In Warzone, get 10 kills or kill assists with a recommended weapon.

2,500 XP

In Urzikstan, open 20 loot caches in the northwest region (Resort, Power, Seaport, Cargo).

5,000 XP

In Urzikstan, open 20 loot caches in the southern region (City, Suburbs, Manor).

5,000 XP

Complete 15 contracts in Warzone.

5,000 XP

In Urzikstan, open 20 loot caches in the eastern region (Military Base or Farms).

7,500 XP

In Urzikstan, open 20 loot caches in the central region (Old Town, Low Town).

7,500 XP

In Warzone, place in the top ten 5 times.

10,000 XP

Tips

  • You must play in Urzikstan to complete these challenges, unless otherwise noted.
  • Consider playing Plunder for the loot cache challenge.
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