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A new set of Weekly Challenges are available this week inCall of Duty: Modern Warfare 3, bringing with it a conversion kit that applies to the KVD Enforcer and KV Inhibitor. Install the JAK Volkh Kit on either weapon, and you’ll have a powerful burst-fire weapon in your hands.
As with all previous conversion kits, you’ll need to complete any five of this week’s challenges to get your hands on this aftermarket part. Let’s go over how the JAK Volkh Kit works in MW3, and then we’ll explain how to complete all 21 of this week’s challenges in Season 4.

Week 6 Challenge Reward
After you complete any five of this week’s challenges, you’ll unlock theJAK Volkh Kit for the KVD platform. Similar to the JAK Signal Burst Kit for the Holger platform, the Volkh Kit converts all KVD weapons (the Enforcer and Inhibitor)into a three-round burst rifle.It can down players in Multiplayer with a single burst, but the high recoil makes this somewhat difficult without an optimized build. Even then, expect lower handling and mobility stats.
Challenge
XP Reward
Get 30 kills with a recommended weapon set to burst fire.
2,500 XP

Get 25 kills with any optic equipped to a recommended marksman rifle.
5,000 XP

Get 15 kills with a recommended marksman rifle with 5 attachments installed.
Get 12 kills with a recommended battle rifle set to semi-auto fire.
Get 3 kills with one magazine 10 times with recommended assault rifles.
7,500 XP
Get 3 quickscope kills in a single life 3 times with a recommended sniper or marksman rifle.
10,000 XP
Get 5 kills or assists with a recommended weapon.
In Fortune’s Keep, open 20 loot caches in the northern region (Gatehouse, Keep, Terraces).
In Fortune’s Keep, open 20 loot caches in the eastern region (Konni Outpost, Lighthouse, Pier, Winery).
Complete 15 contracts in Warzone.
In Fortune’s Keep, open 20 loot caches in the southern region (Ground Zero).
In Fortune’s Keep, open 20 loot caches in the western region (Graveyard, Overlook, Town).