MW3 and Warzone Season 4 Week 6 challenges are now underway, bringing fans a new set of tasks to complete and rewards to earn. Like the previous weekly challenges, players are given seven unique challenges for each game mode, i.e., Multiplayer, Zombies, and Battle Royale, and completing any five of them marks weekly challenges for that mode as completed.Each of these tasks brings XP rewards and completing any five out of the seven MW3 and Warzone Season 4 Week 6 challenges in any of the modes will unlock this week's final reward, which is a new Aftermarket Part.This brief guide will take a closer look at all the MW3 and Warzone Season 4 Week 6 challenges, how to complete them, and all the rewards you can reap by completing them.All MW3 and Warzone Season 4 Week 6 challenges and their rewardsThe following are all the MW3 and Warzone Season 4 Week 6 challenges and their rewards:MW3 Multiplayer Season 4 Week 6 challengesAll MW3 Multiplayer Season 4 Week 6 challenges and rewards (Image via Activision)MW3 Season 4 Week 6 Multiplayer challenges are quite easy and mostly require you to get kills using different weapons; you can complete them in a few matches. To speed things up even more, equip the Overkill Vest and try to complete two challenges in one match.Here's what this week entails:Weekly challengesRewardsGet 30 Operator Kills with a Recommended Weapon set to Burst Fire Mode2500 XPGet 15 Operator Kills with a Recommended Marksman Rifle using 5 Attachments5000 XPGet 3 Operator Kills with 1 Magazine 10 Times with Recommended Assault Rifles7500 XPGet 3 Operator Longshot Double Kills with a Recommended Sniper10000 XPGet 25 Operator Kills with Sights equipped to a Recommended Marksman Rifle5000 XPGet 12 Operator Kills with a Recommended Battle Rifle set to Single Fire Mode5000 XPGet 3 Operator Quickscope Kills in one life 3 Times with a Recommended Sniper or Marksman Rifle7500 XP MW3 Zombies Season 4 Week 6 challengesAll MW3 Zombies Season 4 Week 6 challenges and rewards (Image via Activision)MW3 Zombies Season 4 Week 6 challenges are also quite straightforward and are a tad bit easier than Week 5 challenges. While you might require a few infills, it won't take much of your time to complete them all. The following are all the Zombies challenges and their rewards:Weekly challengesRewardsGet 150 Kills with a Recommended Weapon set to Burst Fire Mode2500 XPGet 75 Kills with a Recommended Marksman Rifle using 5 Attachments5000 XPGet 12 Kills with 1 Magazine 10 Times with Recommended Assault Rifles7500 XPGet 200 Kills with a Recommended Sniper Rifle while using 5 attachments10000 XPGet 100 Kills with Sights equipped to a Recommended Marksman Rifle5000 XPGet 60 Kills with a Recommended Battle Rifle set to Single Fire Mode5000 XPGet 10 Quickscope Kills in one life 20 Times with a Recommended Sniper or Marksman Rifle7500 XP Also read: How to get the Play Your Life blueprint in MW3 and WarzoneWarzone Season 4 Week 6 challenges (Battle Royale)All Warzone Season 4 Week 6 challenges and rewards (Image via Activision)Most of the Warzone Season 4 Week 6 challenges require you to loot caches in different parts of the map Fortune's Keep. These tasks are pretty straightforward and rewarding at the same time. Here are all the challenges for this week and the rewards:Weekly challengesRewardsIn Fortune’s Keep, Open 20 Loot Caches in the North Region (Gatehouse, Keep, Terraces)5000 XPIn Fortune’s Keep, Open 20 Loot Caches in the East (Konni Outpost, Lighthouse, Pier, Winery)5000 XPPlace in the top 10 5 times10000 XPGet 5 Operator Kills or Kill Assists with a Recommended Weapon2500 XPIn Fortune’s Keep, Open 20 Loot Caches in the West (Graveyard, Overlook, Town)7500 XPn Fortune’s Keep, Open 20 Loot Caches in the South (Ground Zero)7500 XPComplete 15 Contract(s)5000 XP Read More: How to unlock all Modern Warfare 3 X Trident Gum rewardsMW3 and Warzone Season 4 Week 6 challenges completion final rewardThe final reward for completing MW3 and Warzone Season 4 Week 6 challenges is the JAK Volkh Aftermarket Conversion Kit for the KVD Enforcer and the KV Inhibitor. To unlock the kit, complete any 5 out of 7 MW3 and Warzone Season 4 Week 6 challenges in any of the modes.Once you complete the MW3 and Warzone Season 4 Week 6 challenges (5 out of 7), the Aftermarket Conversion Kit will be unlocked for the KVD Enforcer and the KV Inhibitor. However, to be able to equip it, ensure the guns are at the maximum Weapon Level, which are Levels 30 and 33, respectively.The JAK Volkh Aftermarket Conversion Kit is a receiver mod for the weapons that transforms them into a 2-burst fire rifle, making them extremely lethal, even in the core game modes and a single burst will be more than enough to take down your opponents easily.Final thoughtThat covers all the new MW3 and Warzone Season 4 Week 6 challenges and their rewards. Although some of the tasks might seem quite tedious, players should still complete them as the final reward, the JAK Volkh Aftermarket Conversion Kit, is definitely worth it.Check out our other Call of Duty articles:Casus Brake in Modern Warfare 3 and Warzone: How to unlock, pros and consJGoD reveals the 5 best meta loadouts to use in Warzone Season 4 ReloadedModern Warfare 3 stuttering on Xbox: Possible fixes, known reasons, and more"W or L?" - Call of Duty fans react to the latest Kar98K nerf in WarzoneBuffed MTZ-556 loadout is underrated in Rebirth Island