The MW3 and Warzone Season 5 Week 1 challenges are currently underway, bringing fans a fresh set of tasks and new rewards. Players are given a total of 7 challenges for each game mode i.e., Multiplayer, Zombies, and Battle Royale, and completing any 5 out of the 7 challenges in any of the game modes, will mark the Week 1 challenges as complete, unlocking the final reward of the week.With the basics of weekly challenges out of the way, in this article, we'll take a look at the MW3 and Warzone Season 5 Week 1 challenges, what needs to be done, and all the rewards they bring.All MW3 and Warzone Season 5 Week 1 challenges and rewardsThe following are all the MW3 and Warzone Season 5 Week 1 challenges and their rewards:MW3 Multiplayer Season 5 Week 1 challenges and rewardsAll MW3 Multiplayer Season 5 Week 1 challenges and their rewards (Image via Activision)The MW3 Multiplayer Season 5 Week 1 challenges are pretty straightforward and in fact, they are some of the easiest tasks so far. Most of these tasks require you to get a variety of kills such as Longshots, Clean Kills, Hip Fire kills, et cetera. Here are all the challenges and their rewards:ChallengeRewardGet 40 Operator Kills2500 XPGet 25 Operator Kills while in Midair5000 XPGet 10 Operator 1 Shot 1 Kills with Sniper Rifles7500 XPGet 3 Operator Triple Kills with SMGs10,000 XPGet 30 Operator Longshot Kills 5000 XPGet 20 Operator Hipfire Kills with SMGs 5000 XPGet 5 Operator Clean Kills with Shotguns 7500 XPAlso read: Modern Warfare 3 Season 5 patch notes: Slam Deathmatch, Cel-shaded maps, Zombies changes, and moreMW3 Zombies Season 5 Week 1 challenges and rewardsAll MW3 Zombies Season 5 Week 1 challenges and their rewards (Image via Activision)Similar to Multiplayer, the MW3 Zombies Season 5 Week 1 challenges are some of the easiest so far. They are pretty straightforward and mostly require getting kills in different scenarios. Here's what this week entails:ChallengeRewardGet 250 Kills2500 XPGet 250 Kills with a Pack-A-Punched Shotgun5000 XPGet 200 One Shot Kills with a Sniper Rifle7500 XPGet 3 Mangler Kills with a SMG10,000 XPGet 250 Kills with Shotguns at Epic (Purple) Rarity or Higher 5000 XPGet 100 Hipfire Kills with a SMG 5000 XPGet 10 Zombie Kills without Taking Damage 20 Times with a Shotgun 7500 XPWarzone Season 5 Week 1 challenges and rewards (Battle Royale)All Warzone Season 5 Week 1 challenges and their rewards (Image via Activision)The Warzone Season 5 Week 1 challenges are also pretty straightforward and most of them require you to get kills in certain parts of the map Urzikstan. Apart from that, you must open Loot Caches, complete Contracts, and place in the top 10. Here are all the challenges this week:ChallengeRewardIn Warzone Urzikstan, Get 15 Operator Kills in the North-West Region (Resort, Power, Seaport, Cargo)5000 XPIn Warzone Urzikstan, Get 15 Operator Kills in the Southern Region (City, Suburbs, Manor)5000 XPIn Warzone, place in the Top 10 7 time(s)10,000 XPIn Warzone, open 75 Loot Caches2500 XPIn Warzone Urzikstan, Get 15 Operator Kills in the Eastern Region Military Base (Military Base, Farms)7500 XPIn Warzone Urzikstan, Get 15 Operator Kills in the Central Region (Old Town, Low Town)7500 XPIn Warzone, complete 15 Contract(s)5000 XPRead more: Warzone Season 5 patch notes: Superstore Resurgence, new Field Upgrade, Bounty Contest, and moreFinal reward for completing MW3 and Warzone Season 5 Week 1 challengesThe final reward for completing the MW3 and Warzone Season 5 challenges is the JAK Widemouth Aftermarket Kit for the MORS. As mentioned earlier, to unlock it, you must complete any 5 out of the 7 challenges in any one of the following game modes - Multiplayer, Zombies, or Battle Royale. Upon completion, the Kit will be unlocked for use.The JAK Widemouth is a Barrel mod for the MORS. It enables the Sniper Rifle to shoot magnetic ball bearings, that shatter when fired, breaking into multiple pieces which act as lethal projectiles shredding through enemies. As a result, the weapon can now deal damage over a relatively larger area, which is extremely strong at a closer range but becomes less viable as the distance from the target increases.That covers all the new MW3 and Warzone Season 5 Week 1 challenges and their rewards.For more related news and guides, check out the links below:Every weapon buff and nerf in Warzone Season 5All Season 5 Prestige rewards in MW3 and WarzoneCall of Duty may have used AI in Warzone and MW3Warzone and MW3 Season 5 BlackCell Battle PassModern Warfare 3 announced for Xbox Game Pass