Call of Duty: Warzone Season 1 — Modern Warfare 4 Integration Explained

Call of Duty: Warzone's biggest shake-up in more than a year went live on Friday, November 6, 2026, when Season 1 of Call of Duty: Modern Warfare 4 fully integrated with the free-to-play battle royale. Warzone now runs on Modern Warfare 4's movement and gear, two new maps have taken over the core playlists, and the game has quietly ended support on two platforms while launching on a new one.

Here is everything confirmed so far about what changed, what's new to play, and what it means if you're jumping back in.

1. What Changed When Season 1 Launched

Season 1 went live at midnight ET on November 6 (9pm PT / 5am GMT on the same rollout window) across every supported platform. The headline change is that Warzone is no longer running on the Black Ops 7 system — it has fully switched over to Modern Warfare 4's movement, gunplay and the full suite of MW4 gear. Activision is treating it as a soft relaunch: Hajin and Zodiac take over as the two primary maps, Player Level resets for everyone, and the HUD, Gulag and loot systems have all been rebuilt around MW4's mechanics.

2. Hajin: The New Battle Royale Map

Hajin is Warzone's first map set on the Korean Peninsula, spanning North and South Korea across 13 points of interest, including Hajin City, Imjin Farmland, the 14th Political Prison, Chang-san Air Base and Deadtown. It ships with dynamic, randomized weather and two separate Gulag layouts, so 1v1s won't play out identically every match. It's the largest map Warzone has run as its primary battle royale destination since the MW4 integration was first announced.

3. Zodiac: The New Resurgence Map

Zodiac is the companion Resurgence map, built by Beenox alongside Infinity Ward around a drone-manufacturing headquarters in South Korea. It's considerably more compact than Hajin, with 10 points of interest such as Admin, Trackline and Furnace, plus railways and underground tunnels running through the middle of the map. Zodiac is also the home of the new Rally Point mode (more below), and players who tried the Modern Warfare 4 beta earlier this year will recognize parts of its layout.

4. New and Returning Modes

Launch day brought three limited-time modes alongside the standard Battle Royale and Resurgence playlists: Rally Point (up to 20 players, exclusive to Zodiac), Massive Resurgence (120 players on Hajin) and Loaded Resurgence (44 players, running on Zodiac or Rebirth Island). Both Battle Royale and Resurgence also have Casual variants for players who want a lower-stakes match. Activision has confirmed two more modes, Extreme Resurgence and Rockets and Snipers, for later in the season — exact dates haven't been announced yet.

5. New Gear, Perks and Mechanics

Modern Warfare 4's full equipment list is now available in Warzone, and a handful of new tools stand out. The Zipline Launcher is a Field Upgrade that creates a zipline any squad member (or enemy) can use to cross terrain quickly. The Grabber Drone can lift loot crates, fuel barrels and downed teammates, though its battery is limited, so it can't be spammed. Weapon Augments are earned at Fly Buy Buy Stations once a supply drone crosses the map, with CQC, Marksman and Handling options available at launch.

On the perk side, three new Elite Perks — Athleticism, Phantom and Fieldcraft — can be found in matches and slot into a new fourth Perk slot. Tactical Sprint no longer requires a dedicated Perk to use, though its duration has been trimmed slightly to compensate, and players can now drag teammates while reviving them instead of standing still and exposed.

6. 33 New Guns, Plus a Legacy Weapons Tab

All 33 Modern Warfare 4 launch weapons are usable in Warzone, each with its own Weapon Prestige track and Warzone-specific Mastery Camos. Two early standouts from the Battle Pass are the Cronen Osprey assault rifle, which unlocks at Tier 16 (or as a blueprint at Tier 87) and takes the Cronen Helix Mk. II apex attachment, and the CSG-35 submachine gun, which unlocks at Tier 36 (or Tier 87's blueprint) with the CSG Crossfire apex attachment.

Older weapons haven't disappeared — guns from Modern Warfare II through Black Ops 7 are grouped into a new Legacy tab. They remain usable, but they can't be edited in Gunsmith and don't get Mastery Camos, Reticle Challenges, Cosmetic Gunsmithing or custom Build Codes. Each legacy weapon ships with five fixed attachment setups, and legacy Blueprints are unlocked through Player XP in the Armory instead of challenges.

7. Where Verdansk and Rebirth Island Stand

Hajin and Zodiac have taken over as Warzone's primary Battle Royale and Resurgence destinations for the start of Season 1. Activision has confirmed that Verdansk and Rebirth Island will both return later in the season, though it has not announced an exact date for either map's comeback yet. If you've been grinding camos or challenges on either classic map, it's worth finishing what you can on Hajin and Zodiac in the meantime rather than waiting them out.

8. DMZ Gets a New Forward Operating Base: X01 Black Site

Modern Warfare 4's extraction mode, DMZ, debuts a new map with Season 1 called X01 Black Site. It's the mode's first new location since MW4's DMZ launched in early access ahead of the full game, and it follows the same Forward Operating Base structure DMZ players have used on Hajin's earlier FOB.

9. Battle Pass, BlackCell and the Full Reset

A new Season 1 Battle Pass is live, with the weapon unlocks above tied directly to its tiers, alongside a paid BlackCell tier. Anyone who bought the Modern Warfare 4 Vault Edition can claim their BlackCell unlocks for the season, which include bonus content and rank skips. On the progression side, Player Level resets for every account at the start of Season 1, while Prestige is now optional and shared across Multiplayer, DMZ and Warzone, so climbing it in one mode carries over to the others.

10. Platform Shake-Up: PS4 and Xbox One Out, Switch 2 In

Season 1 marks the end of Call of Duty: Warzone support on PlayStation 4 and Xbox One — the game is no longer playable on either console as of November 6. In the other direction, Warzone has launched for the first time on Nintendo Switch 2. Anyone moving off a now-unsupported console keeps their progression as long as they sign back in with the same linked Activision account on a supported platform.

Quick-Tips Recap

• Season 1 went live November 6, 2026, fully switching Warzone onto Modern Warfare 4's movement and gear.
• Hajin (Battle Royale) and Zodiac (Resurgence) are the new core maps; Verdansk and Rebirth Island return later in the season with no date confirmed yet.
• New tools include the Zipline Launcher, Grabber Drone, Weapon Augments and three new Elite Perks.
• All 33 MW4 launch weapons are available, while MWII–Black Ops 7 guns move to a limited-customization Legacy tab.
• DMZ adds the X01 Black Site map; the Battle Pass and BlackCell are both live, and Player Level has reset for everyone.
• Warzone has ended support on PS4 and Xbox One and launched on Nintendo Switch 2.

If you're easing back into the Warzone side of things, it's also worth brushing up on how other live-service shooters are handling their own seasonal resets — Apex Legends' Marked midseason patch made similar weapon and legend balance changes this fall, and Fortnite's Chapter 7 Season 4 Override update went through a comparable battle pass and map refresh. For how Warzone's integration with MW4 was originally pitched before launch, see our breakdown of the game's release date, editions and Warzone plans, and for the DMZ side of Hajin specifically, check our guide to its Forward Operating Base.

Official Resources

• Call of Duty: Warzone official site
• Call of Duty official patch notes
• Call of Duty: Modern Warfare 4 on Steam

For more on what else is live right now, browse the full walkthroughs and guides archive.