Modern Warfare patch notes for Season 4's full update

Modern Warfare: Warzone Season 4 updates

Season 4 of Modern Warfare doesn't just mark the arrival of a new Battle Pass, it also introduces a host of new features for you to experiment with. This includes:

• Warzone Rumble - a new 50v50 game mode in Warzone
• Weapon mastery challenges, which become available once you've unlocked Gold for a weapon and offer you a new set of rewards for each weapon
• Three in-match events - Jailbreak, Fire Sale and Supply Choppa - which hold the potential to turn the match in your favour
• The Contraband Contract System, which, if completed successfully, will reward you with a permanent blueprint
• New Operators and skins, including Captain Price, Surreptitious and Killswitch

• Four new songs for the Modern Warfare playlist and six for the Warzone playlist
• New vehicle and weapon skins for Warzone
• Modified special operations: Just reward - veteran and just reward - regular
• Season 4 Battle Pass with 100 levels of new unlocks, including weapon Blueprints and COD Points

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Modern Warfare patch notes: What's been introduced in Modern Warfare's Season 4 update

Below you can find the patch notes for the update, copied verbatim from the developer Infinity Ward:

General Fixes:

• Fix for some players not receiving their Season 3 emblem
• Fixes to help reduce players encountering Error Code 13-71. If you still experience this after today's update, please reach out to Activision Customer Support
• Fix for a bug where the Ghost Perk was not hiding players from the Heartbeat Sensor when viewing the Killcam
• Fixed an issue where some players were unable to activate a Nuke after getting the appropriate number of kills
• Fix for a bug where the 4th Operator Mission for Talon, “Complete 2 Warzone Plunder Matches” was not tracking as intended
• Fix for an issue where some players could find long wait times when attempting to load into Ground War matches
• Fix for a bug where neutral Hardpoints were appearing yellow instead of grey
• Various exploit fixes across multiple maps
• Fix for the Officer Challenge, “Get 20 kill while crouched” not tracking properly for some players
• Fixed a bug where the white health regen was triggering on downing other players even if Quick Fix wasn't equipped
• Fix for an exploit where players could sometimes call in duplicate UAVs
• Added new weapon perks to the Specialist Bonus (the bonus earned after getting 8 kills while specialist is active): Frangible-Disabling, Frangible-Wounding, Mo'Money, Recon, Heavy Hitter, FMJ, Presence of Mind
• Fixed a bug where players were unable to perform executions when on some elevated surfaces
• Fixes to help prevent an issue where players were able to move before the match countdown timer completed
• Fixes to help prevent against black graphical corruption issues some players were seeing
• Fix for the “For the Cause” grip tape not appearing properly on the base M4
• Improved stability fixes for PC
• Fixes to help prevent issues with voice chat

Weapons:

• Lowered ammo count for reload warning on belt fed LMG
• Fixed bug with HDR and Sleight of Hand where reloading would not give ammo to the player

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Warzone:

• Loot Update: New weapons and updated Blueprints! Be on the lookout for the Fennec, CR-56 Amax, Renetti, and more!
• Fixed a bug where the Recon Contract could spawn inside an Ammo Supply cache, making it unusable
• After completing the Contraband Mission and calling in the extract helicopter, players could shoot the helicopter without receiving hitmarkers and the helicopter would remain on screen indefinitely
• Fixed a bug where players were able to drop their weapon in the Gulag
• Fix for an exploit where players were able to duplicate Self Revive kits

Special Operations:

• Fix for a bug where a player was stuck in 3rd person gameplay
• Daily Challenges are now displayed alongside Multiplayer and Warzone challenges
• Fixed an issue where unlocking an Operator skin in Co-Op would not unlock the base skin for that Operator as well
• Fixed a bug where the game would not end correctly if the last player alive used Team Revive immediately before dying

Special Operations: Survival:

• Fix for being able to duplicate the Juggernaut Suit Munition minigun
• Fix for rare instances of waves not ending properly
• Fixed an exploit on St. Petrograd where players could fully hide from soldiers behind a bar

Hope you enjoy Modern Warfare Season 4!