Modern Warfare patch notes for Season 4's full update

Modern Warfare Season 4 brings with a variety of new updates, which includes new Operators and Warzone Rumble mode.

It also marks the inclusion of in-match events in Warzone and the start of a new Battle Pass, which is shared between both games.

On this page you'll find the Modern Warfare: Warzone patch notes as part of the latest Modern Warfare update.

On this page:

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

We explain the Warzone Season 3 best weapons you need to start using, and break down new additions M1916, Nikita AVT and UGR ahead of the Godzilla vs Kong event Operation Monarch. If you want to learn more about firepower from previously, we explain the best Welgun loadout, best Cooper Carbine loadout, best Gorenko Anti-Tank Rifle loadout, best STG44 loadout, best MP40 loadout, best Automaton loadout, best BAR loadout, best Combat Shotgun loadout, best Type 100 loadout, and best Kar98k loadouts.

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

5 Things We Like About Call of Duty: Warzone (And 4 Things We Don't)

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!

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