The Blaze Up 4/20 event is coming to Modern Warfare 3 and Warzone following the Godzilla x Kong Battle for Hollow Earth crossover. It is set to offer plenty of rewards that players can claim for free by completing challenges. Several cosmetic bundles are also set to launch during its run, including the highly anticipated Cheech and Chong Tracer Pack.Kicking off on April 10, 2024, the Blaze Up 4/20 event is slated to run for two weeks, culminating in a full celebration on April 20, 2024. Here's everything you need to know about it, including the rewards, challenges, and more.All rewards for Blaze Up 4/20 event in MW3 and WarzonePlayers can claim up to 12 rewards in the new Blaze Up 4/20 event in Modern Warfare 3 and Warzone, ranging from double XP tokens to in-game accessories and weapon camos.Here's the complete list of rewards for the event:Double XP Token"Hot Out of the Oven" Weapon Sticker"Weedson" Killstreak Skin"High as Duck" Weapon Charm"Seeing Sound" Weapon Sticker"Utterly Inspiring" Emblem"Bro, You're Out of this World" Calling CardDouble Weapon XP Token"Every Second an Hour" Large DecalBattle Pass Tier SkipDouble Battle Pass XP Token"Daymares" Animated Weapon BlueprintHow to play the Blaze Up 4/20 event in MW3 and WarzoneThe Blaze Up 4/20 event will introduce the Stoney Sloth bundle (Image via Activision)To unlock the rewards in the Blaze Up 4/20 event, players must complete challenges across Modern Warfare 3 and Warzone Multiplayer, Zombies, and Warzone Battle Royale. Note that you need to acquire all 11 rewards to unlock the Daymares animated camo.The complete list of challenges can be found below:MultiplayerGet 25 Operator Kills with a Cooked Frag or Thermobaric GrenadeGet 40 Operator Kills with the Dragon's Breath Attachment equipped while sliding or crouchingGet 25 Operator Clean Kills with the Akimbo attachment equippedGet 10 Operator Quick Scope kills with the Stalker Boots perk equippedGet 20 Operator Kills while in smoke with the JAK Purifier Attachment equippedHit 20 operator kills with Tear Gas with the Tac Mask perk equippedUse the Stim or Battle Rage 15 timesGet four Operator Kills within 20 seconds in one life, two timesGet 10 Operator Stuck Grenade Kills with the Grenadier Vest equippedGet 20 Operator Direct Impact Launcher KillsDeploy an Inflatable Decoy Field Upgrade 15 times with the Engineer Vest equippedZombiesGet 250 kills with Stamin-Up activeKill three AbominationsKill 50 Hellhounds with ShotgunsGet 80 Critical Kills with Snipers, Marksman, or Battle RiflesGet 200 kills shortly after reloading with Speed Cola activeComplete four contractsDestroy four vehiclesGet 400 Kills with a Wallbuy weaponDestroy three Harvester OrbsGet 50 Brain Rot Zombie KillsGet 30 Mercenary Critical killsWarzone/Battle RoyaleReduce the Resurgence timer for a total of 100 secondsIn a single match, trade two keycards from a Biometric scanner at a Buy StationOpen 20 Loot Caches in a single Resurgence match on Rebirth IslandActivate the Boat Horn near the Factory on Rebirth IslandUse Squad Rage on all your teammates at onceComplete five Spy Drone contractsDuring Infil or Redeploy land in the Gondola using the parachute in Rebirth IslandEliminate eight players while having an active power-up gummy in High Trip ResurgenceHave all four Power Up Gummies active at once in High Trip ResurgenceCollect 50 Gummies in High Trip ResurgenceBuy four players back from the Buy Station in ResurgenceFollow Sportskeeda for more Call of Duty news and updates.All Biometric Scanner Check-In rewards leaked for Warzone Rebirth Island in Season 3Best FR Avancer loadout in MW3 Season 3How to unlock Nuke rewards instantly using new Warzone glitch