Call of Duty: Modern Warfare 3’sthird season has released its first set of Weekly Challenges. Each week, a new set of challenges are released for Multiplayer, MWZ, and Warzone. Completing any five of these challenges, regardless of playlist, will unlock that week’s unique reward. If you earn all eight Weekly Challenge rewards throughout a season, you’ll unlock an exclusive camo.

This week, completing five challenges will unlock the JAK Shadow Titan Kit for the Bruen Mk9. This guide will quickly go over how this conversion kit works, and we’ll explain how to complete each Weekly Challenge as efficiently as possible.

Modern Warfare 3 Makarov Beside Wolf Skin

Week 1 Challenge Reward

Completing five of this week’s challenges will unlock theJAK Shadow Titan KitfortheBruen MK9.This installs an integrated suppressor and changes the ammo type to .300 Blackout. This adds a 50ms open bolt delay whenever you pull the trigger, but the Bruen’s fire rate is increased to 844RPM, an 11% increase.

Additionally,this conversion kit substantially increases the weapon’s swap time, handling stats, overall mobility, and vertical recoil.This gun effectively turns into an assault rifle with slightly worse horizontal recoil. Counter this with the right underbarrel, and you’re able to dominate mid-range engagements with ease.

Modern Warfare 3 Zombies Operator Fighting Mauler Outside Dark Aether Rift

This attachment locks the barrel, muzzle, ammunition, and magazine attachment slots on the Bruen MK9. It installs the 60 Round Mag attachment for free.

Challenge

XP Reward

Get 25 operator crouch kills while aiming down sights with recommended LMGs.

2,500 XP

Modern Warfare 3 Warzone Key Art Players Fighting Atop Burning Building

5,000 XP

7,500 XP

Get 4 kills in one magazine 3 times with recommended LMGs.

10,000 XP

Get 300 kills with a recommended LMG while aiming down sights.

Open 75 loot caches.

In Rebirth Island, get 15 operator kills in the northwest region (Dock, Control Center).

In Rebirth Island, get 15 operator kills in the southeast region (Stronghold, Living Quarters).

Revive a teammate 15 times in Warzone.

In Rebirth Island, get 15 operator kills in the northeast region (Bioweapons Industries, Harbor, Chemical Eng.).

In Rebirth Island, get 15 operator kills in the center region (Prison Headquarters, Factory).