Patch Notes

Call of Duty Cold War Update 1.21 Patch Notes – August 11, 2021


Call of Duty Cold War update 1.21 is now rolling out on PS4, PS5, PC, Xbox Series X and Xbox One. According to the latest Call of Duty Cold War 1.20 patch notes, the latest mid season update added the latest round-based Zombies experience, a classic Multiplayer map and new modes. Apart from this, Black Ops Cold War version 1.21 also includes various stability fixes.

Previously, a big update was released with various changes and bug fixes.

Unfortunately, since the last patch, some players are facing issues while playing the game online. Today’s Call of Duty Cold War patch 1.21 will fix a few of these issues. Read more details below.


Call of Duty Cold War 1.21 Patch Notes



Kravchenko has you captive, and the only chance at survival for you – and your strike team’s pilot – is to follow his orders.

New Round-Based Zombies Map: “Mauer Der Toten”

Set after the events of “Operation Excision” in Outbreak, “Mauer Der Toten” is Treyarch’s next classic round-based Zombies experience where Requiem agents, currently working for Omega Group’s Colonel Kravchenko in a bid for their freedom, will explore war-torn Berlin after a zombie invasion has overtaken the city.

Agents will navigate through the dark streets, lit only by spotlights, street lamps, and long-abandoned vehicles, to reach various key landmarks and structures, including a U-Bahn where flaming trains carry undead passengers to parts unknown. They won’t be alone, however, if they can find a way to activate a new robotic companion, Klaus, who will help them defeat the undead.

All of that, plus a new Wonder Weapon with four unique variants, fast-travel ziplines, terrifying new enemies, new quests to discover, and more secrets and surprises are coming in this massive new round-based map. Keep checking the Call of Duty Blog and Treyarch’s blog for more information as we break down this map and more Zombies tips up to the map’s Main Quest launch time of 10 AM PT on July 15.

The Return of Mule Kick

The Legend of El Burro lives on in Black Ops Cold War.

At the launch of Season Four Reloaded, the Mule Kick Perk-a-Cola will have its very own machine in “Mauer Der Toten” and also be stocked within Der Wunderfizz machines across the other round-based maps and Outbreak.

First introduced in the original Black Ops, Mule Kick allows Requiem agents to carry three weapons as opposed to the default two. It’s helpful for both lone wolves looking to carry another six-shooter (or any weapon found in traditional Zombies maps or Outbreak), and for an entire squad searching for some added versatility.

Upgrading this Perk is a sure-fire way to gain some more firepower, as there are some awesome equipment and ammo benefits available across its five Skill Tiers. Learn more about how your hard-earned Aetherium Crystals can be used to upgrade this new Perk’s Skill Tiers tomorrow in our Mule Kick breakdown blog.

New Crafting Item and Wonder Weapon

Get ready to create a new piece of Tactical Equipment at Crafting Tables in “Mauer Der Toten,” other round-based Zombies maps, and Outbreak regions: the LT53 Kazimir grenade.

Veterans familiar with the Gersh Device, created by Doctor Anton Gersh in another time, will know the deadly black hole-like effects of the LT53 Kazimir. Upon placement, this grenade will open to suck in any undead creatures, neutralizing them when they reach event horizon. Few know what happens to zombies once they cross the threshold, but a brave agent is more than welcome to find out by jumping into the Kazimir’s gravitational pull…

As for the Wonder Weapon, the new CRBR-S starts off as an energy-based pistol with an orbiting repeater that fires an extra shot when you fire. To upgrade it into its three additional variants, you’ll need to recover special Mod Kits that drop from zombies that will attach onto the CRBR-S to transform it into a completely different weapon.

To acquire a CRBR-S, you’ll have to explore “Mauer Der Toten” to find the hidden one via its own quest, prove yourself worthy at the Trials machines, or just get plain lucky at the Mystery Box. Good luck!

New Zombies Challenges and Intel

As for the Wonder Weapon, the new CRBR-S starts off as an energy-based pistol with an orbiting repeater that fires an extra shot when you fire. To upgrade it into its three additional variants, you’ll need to recover special Mod Kits that drop from zombies that will attach onto the CRBR-S to transform it into a completely different weapon.

To acquire a CRBR-S, you’ll have to explore “Mauer Der Toten” to find the hidden one via its own quest, prove yourself worthy at the Trials machines, or just get plain lucky at the Mystery Box. Good luck!

New Zombies Challenges and Intel

A new map means new Requiem Advancement Challenges.

By completing challenges specific to “Mauer Der Toten,” you can earn several Calling Cards for your profile and tons of bonus XP. This includes unlocking the Pack-a-Punch, travelling to every area in a single game, collecting various sets of Intel, and more.

Complete all six of the regular challenges to unlock an Animated Calling Card and even more bonus XP. Of course, Dark Ops challenge hunters will have a little something to discover with this update, too.

Zombies fans can also expect to uncover a treasure trove of new Dark Aether story Intel in “Mauer der Toten,” driving the narrative forward at a record pace. Be sure to finish your Intel collection across “Die Maschine,” “Firebase Z,” and Outbreak so you can hit the ground running on July 15.

New Onslaught Content (PlayStation)

Requiem Agents on PlayStation have a new Onslaught map to fight the undead and collect Intel on as part of Season Four Reloaded, in addition to a limited-time mode and a Legendary LMG Weapon Blueprint.

Agents will tackle zombie hordes on the classic map Rush, and can race into combat at a ridiculous pace with the “Onslaught Accelerated” mode.

Then there is the LMG Weapon Blueprint, the “Chemtaminate,” which can be unlocked by surviving 20 accelerated Surge waves and used across all Zombies and Multiplayer modes in Black Ops Cold War.

No matter how you play Zombies, Season Four is shaping up to be the biggest season of new content yet.


Veterans of the franchise and newcomers alike will feel right at home with a returning classic map and intense new game modes.

New Map: Rush Returns from Black Ops II

It’s paintball season.

A remastered map from Call of Duty®: Black Ops II’s Vengeance DLC pack, Rush is a small-sized 6v6 map that takes place in and around a paintball course. This chaotic arena offers multiple opportunities for up-close-and-personal combat, with narrow choke zones to scurry through and a scattering of exterior structures offering longer-range takedown possibilities.

In addition to Core and Hardcore Multiplayer public modes, Rush is also available in Private Matches for practice and to play with friends. Our suggestion? Get everyone the Tracer Pack: Big Joke III Bundle, have all Operators equip the “Double Brush” Weapon Blueprint, and set the health to its minimum for a true paintball experience inside Call of Duty®… especially if you play on a returning mode to the franchise.

New Modes: Capture the Flag and Paintball Moshpit

Like Call of Duty, this game mode has plenty of history behind it.

An objective mode whose roots stem from the very first Call of Duty Multiplayer experience, Capture the Flag (CTF) is a competitive mode where squads must take the enemy’s flag and return it to their home base, while also defending theirs from the enemy team.

A flag will not be captured unless a team’s own flag is safe in their base, so squads must have both a good offense and defense to win the match. Also, a short respawn timer prevents any one side from throwing themselves recklessly towards the enemy base, making each life count in this fast-paced tactical brawl for supremacy.

Later in the season, Treyarch is expanding the paintball experience out of Rush and into the wider world of Black Ops Cold War Multiplayer in the new Paintball Moshpit. This new way to play MP will introduce paintball visual effects and impact sounds to the action across a selection of maps and modes. Get ready to get messy!

New Playlists: Rush 24/7 and Cranked Moshpit

Also coming at mid-season launch, Treyarch will be running a dedicated Rush 24/7 playlist to give everyone a chance to enjoy the latest map non-stop, in addition to an all-new collection of Cranked modes.

If you’ve been loving Cranked Hardpoint and its original ‘80s Action Heroes incarnation, you’re going to love Cranked Moshpit, which adds Cranked Team Deathmatch and Cranked Kill Confirmed to the mix for the first time.

Weapon Blueprint and Call of Duty League Charm Rewards in League Play

Following on the heels of the launch of League Play Rewards earlier in Season Four, Treyarch is introducing new Weapon Blueprints and Call of Duty League-themed Weapon Charms for competitive fans to earn in League Play, along with new Stickers, Emblems, and XP bonuses to unlock at certain win milestones.

Weapon Blueprints in the Prestige Shop

The Prestige Shop is also getting a new batch of content to unlock using the Prestige Keys you’ve earned at every 50 Season Levels, including exclusive Weapon Blueprints in Season Four Reloaded. Hit up the Prestige Shop in the Barracks during launch week and unlock some new additions for your arsenal!

Free: Two New Weapons

Close-quarters Operators will have two new armaments in their arsenal during Season Four Reloaded.

OTs 9: SMG (Launch) Full-auto submachine gun. Impressive firepower at close range with good visibility when firing. Reliable recoil control with smaller magazine size.

Mace: Melee (In-Season)

Rounding out this season’s weapon offerings is the Mace, the latest melee tool to join over a dozen options in Warzone, and over a half dozen blades and blunt instruments in Black Ops Cold War.

A weapon ill fit for the weak, the Mace can inflict critical damage on command — no 20-sided dice rolls are needed to determine whether it can bludgeon your rivals in a single blow within Multiplayer. And in Zombies, this weapon is perfect for getting medieval on the undead’s decomposing cadavers.

New Operator: Weaver Arrives from Requiem HQ (In-Season)

Weaver: NATO 

Requiem needs every last agent to rescue Raptor-1 from Kravchenko, even if it means calling in strike team leader Grigori Weaver to get the job done.

Weaver will venture beyond Requiem’s classified HQ and become a playable NATO Operator across Black Ops Cold War and Warzone as part of the Tracer Pack: Weaver Operator Bundle, available in the Store at the start of Season Four Reloaded.

Full Patch Notes


  • OTs 9
    • New SMG available via in-game challenge in Multiplayer or Zombies, or via unique Blueprint version in the Store.
  • Assault Rifles
    • Irons Sights have been pushed out for the following:
      • XM4
      • QBZ-83
      • Krig 6
      • FFAR 1


  • Daily 2XP Token Reward
    • New Daily 2XP Token Reward can now be earned by completing your first Daily Challenge of the day in Multiplayer or Zombies.
    • Return each day for a new 2XP or 2X Weapon XP Token Reward.
    • You can only earn one 2XP Token per day. If you don’t complete a Challenge that day, you’ll miss out on that day’s 2XP Token reward.

Prestige Shop

  • Weapon Blueprints
    • New content available in the Prestige Shop, including the “Dark Horse” SMG Blueprint and “Confrontation” assault rifle Blueprint.


  • Addressed an issue where Challenges that require kills through surfaces would not consistently track kills.

War Tracks

  • Addressed an issue that could prevent players from toggling War Tracks on and off while in a vehicle.

High Resolution Texture Packs (PlayStation 5)

  • PlayStation 5 players will have high resolution textures moved to opt-in downloadable packs for Multiplayer, Zombies, and Dead Ops Arcade 3. These will no longer be installed by default, and players will need to download these packs for the best visual experience going forward.
  • Upon boot-up, players will be prompted to install the packs or cancel the download. If the player cancels, these packs will be available for download via the in-game Store.


“Mauer der Toten”

  • New round-based Zombies map available for free in Season Four Reloaded.


  • New enemies in “Mauer der Toten”: The Disciple and Tormentors.

Main Quest

  • Main Quest coming to “Mauer der Toten” starting at 10AM PT July 15th.


  • Mule Kick
    • New Perk available in the Mule Kick Perk Machine in “Mauer der Toten” and in Der Wunderfizz in “Die Maschine,” “Firebase Z,” and Outbreak.
    • Base ability: Carry a third primary weapon.
    • Skill Tier I: Crafted Equipment grants an additional Equipment if able.
    • Skill Tier II: All enemies have a small chance to drop ammo.
    • Skill Tier III: Stowed weapons slowly refill ammo from stock.
    • Skill Tier IV: 25% chance to keep non-retrievable Equipment when used.
    • Skill Tier V: Third primary weapon is recovered when repurchasing Mule Kick.

 Wonder Weapons

  • CRBR-S
    • New Wonder Weapon available exclusively in “Mauer der Toten.”
    • Base pistol weapon with three Mod Kit variants.
    • Zombies killed with any version of the weapon have a chance to drop one of the three Mod Kits.
    • Equipping a Mod Kit will convert the weapon to one of its variant forms.


  • LT53 Kazimir
    • New Tactical Equipment that can be found as a drop or crafted at the Crafting Table in round-based maps and Outbreak.
    • When deployed, creates a portal that pulls in enemies.
    • Players who jump into the portal will be teleported to another location.
  • Damage Scaling
    • Equipment damage will now scale evenly to be more consistent in their ability to kill enemies.
    • Addressed an issue where certain Equipment was doing more damage than intended on direct impacts.


  • Enemy Health Cap Reductions
    • Zombies: Reduced to +100% at high rounds (down from +300%)
    • Specials: Reduced to +50% at high rounds (down from +100%)
    • Elites: Reduced to +25% at high rounds (down from +100%)
    • HVTs: Reduced to +10% at high rounds (down from +100%)
  • Enemy Armor Durability Reductions
    • Reduced health of armor for Medium and Heavy zombies by 30%.
  • Essence
    • Addressed an issue where players were spawning with 1000 Essence in round-based maps instead of 500.


  • New in-game Dark Aether story Intel available to discover in “Mauer der Toten” and Outbreak.


  • Added new Zombies Challenges for “Mauer der Toten,” including a new Dark Ops Challenge.
  • Addressed an issue where the Season Four “Staycation” Challenge could be completed at the wrong round.


  • Damage from Support items will now scale evenly to be more consistent in their ability to kill enemies.

Field Upgrades

  • Frost Blast
    • Frost Blast damage will now scale evenly to be more consistent in its ability to kill enemies.
  • Energy Mine
    • Energy Mine damage will now scale evenly to be more consistent in its ability to kill enemies.
  • Aether Shroud
    • Addressed an issue with Aether Shroud Tier V where activating its second charge while its first charge was already active would result in failing to accumulate subsequent charges.


  • Dynamic Wall Buys
    • Wall Buy weapons in all round-based Zombies maps will now have a chance to increase in rarity at the end of every fifth round, giving players more weapon options to choose from as the rounds go up.
    • Rarities can increase all the way to Legendary.


  • Additional weapons can now be obtained as Trials Rewards.

Weapon Unlock Challenges

  • OTs 9
    • Added new Weapon Unlock Challenge for Zombies for the OTs 9 SMG.

 Weapon Tuning (Zombies Only)

  • Melee Weapons
    • Increased Pack-a-Punch base damage from 2000 to 2500.
    • Increased Pack-a-Punch Level 3 damage multiplier from 4.0 to 5.0.
  • Sniper Rifles
    • Swiss K31
      • Increased critical damage multiplier from 3.5 to 4.5.
      • Increased Stock Ammo from 42 to 60.
      • SWISS KH3353 (Pack-A-Punched)
        • Increased critical damage multiplier from 3.5 to 4.5.
    • ZRG 20mm
      • Increased critical damage multiplier from 3.5 to 4.5.
      • Increased Stock Ammo from 24 to 30.
      • Head Cannon (Pack-A-Punched)
        • Increased critical damage multiplier from 3.5 to 4.5.
        • Increased Stock Ammo from 64 to 72.
    • Sniper Rifle Charlie
      • Increased max damage from 150 to 175.
      • Increased Stock Ammo from 30 to 50.
      • Anathema (Pack-A-Punched)
        • Increased max damage from 300 to 350.
    • Pelington 703
      • Increased max damage from 250 to 275.
      • Increased critical damage multiplier from 4.0 to 5.0.
      • Pellegrino della Morte (Pack-A-Punched)
        • Increased max damage from 500 to 550.
        • Increased critical damage multiplier from 4.0 to 5.0.
    • LW3 – Tundra
      • Increased critical damage multiplier from 3.5 to 4.0.
      • Increased Stock Ammo from 30 to 35.
      • Permafrost (Pack-A-Punched)
        • Increased critical damage multiplier from 3.5 to 4.0.
        • Increased Stock Ammo from 70 to 90.


  • Addressed stability issues related to the Orda and Mimic.
  • Addressed stability issues related to Trials Challenges.


  • Enemies
    • Increased chance for Ronald Raygun to spawn in Outbreak.
  • Regions/Objectives
    • Region and Objective order will no longer loop once all combinations have been played when progressing Regions.
  • Stability
    • Addressed stability issues related to Fishing in Outbreak.
    • Addressed stability issues related to using the rappel lines in Outbreak.

Dead Ops Arcade 3

  • Playlists
    • Added new First Person Solo Advanced Start playlist.
  • Gameplay
    • Players should now see a wider variety in bonus room distribution.
    • Adjustments to points awarded for Gladiator and Warden kills.
    • Minor adjustments to item spawns.
    • Doubled Egg pickup base health.
    • Increased Golden Egg health by 40%.
    • Reduced Egg hatch cycle so that Eggs now hatch faster.
    • Eggs are now less jumpy, and should not jump as high or as far in general.
    • Mama’s “Armory Basket” has been located.
    • Closed various exploits.
  • Stability
    • Added stability fixes to further prevent “Charlie 285 Military Gorilla” errors.

 Onslaught (PlayStation)

  • Maps
    • Rush added to map rotation with new Intel to discover.
  • Modes
    • Onslaught Accelerated mode now available.
      • Dark Aether orb never stops moving, and enemies never clear or stop spawning.
      • Orb move speed is reduced to a consistent slower value compared to its normal average speed.
      • Orb fill bar is removed in this mode.
      • Because the orb cannot be filled, it does not explode and wipe out enemies, and there are no pauses in movement.
      • Enemies killed increase the speed of the orb for a small period. Each kill increases orb movement speed by 50% for 3 seconds. This effect stacks with multiple kills.
      • Elite Surge Waves still spawn on every third wave.
  • Challenges
    • Unlock the “Chemtaminate” LMG Weapon Blueprint by surviving 20 accelerated Surges in Onslaught Accelerated.

 Featured Playlists

  • Outbreak
  • Mauer der Toten [NEW]
  • Firebase Z
  • Die Maschine
  • Dead Ops Arcade: First Person
  • Dead Ops Arcade
  • Onslaught (PlayStation)
  • Onslaught Accelerated (PlayStation) [NEW]
  • Onslaught Containment (PlayStation)
  • Onslaught Rush (PlayStation) [NEW]



  • Rush (6v6)
    • New map added to Multiplayer rotation in 6v6 modes.


  • Capture the Flag [NEW]
    • New mode added to Multiplayer.
    • Capture the enemy’s flag and return it to your home base while defending your flag from the enemy team.
    • The team with the highest numbers of captures at the end of the match wins.
  • Cranked Team Deathmatch [NEW]
    • New mode available in the Cranked Moshpit playlist.
    • Eliminate enemies to become Cranked and earn buffs.
  • Cranked Kill Confirmed [NEW]
    • New mode available in the Cranked Moshpit playlist.
    • Eliminate enemies and pick up their dropped tags to become Cranked and earn buffs.
  • Multi-Team (All Modes)
    • Addressed an issue that allowed players to use Equipment immediately after exiting the infil plane.
    • Increased Radiation Vest protection amount.
  • Multi-Team Elimination
    • Weapons dropped by eliminated enemies will now be considered loot, allowing for easier pickups.
    • Equipment and Field Upgrades will now be dropped on death.
    • Improved visibility of Supply Drop smoke marker.


  • Nuke (30 Kills)
    • Nuke Scorestreak from Cranked Hardpoint now requires a Nuclear Medal (Kill 30 enemies without dying) and is now available in all modes except the following:
      • League Play and CDL variants
      • Multi-Team modes
      • Party Games (Prop Hunt, Gun Game, Sticks and Stones, One in the Chamber)
      • Gunfight

Featured Playlists

  • Rush 24/7 [NEW] (Also available in Hardcore)
  • Capture the Flag [NEW]
  • Cranked Moshpit [NEW]
  • NukeJacked 24/7 (Also available in Hardcore)
  • Party Games
  • Face Off 6v6
  • Gunfight Blueprints
  • Snipers Only Moshpit
  • Multi-Team Moshpit



  • Removed Standoff from CDL Hardpoint map rotation.

 Skill Divisions

  • Addressed an issue that could prevent players from being able be promoted or demoted to the appropriate Skill Division.

Download free Call of Duty Cold War update 1.21 on PlayStation 4, PC, and Xbox One.