Warzone Legacy Weapons: How They Work in Season 1

Legacy weapons in Warzone are the guns from Modern Warfare II, Modern Warfare III, Black Ops 6 and Black Ops 7 that you can still use after the Season 1 move to Modern Warfare 4, but only as fixed preset builds that cannot be edited in Gunsmith. They start locked, unlock with Player XP in the Armory, and skip Modern Warfare 4 features such as Mastery Camos and build codes. Here is exactly how the system works as of November 2026, and when a legacy gun is still worth running.

Sources for this post are the official Call of Duty Season 1 blog, Raven Software's Season 1 patch notes and 7 November hotfix, and Activision's Modern Warfare 4 progression blog, all checked in November 2026.

What Counts as a Legacy Weapon

When Warzone fully integrated Modern Warfare 4 on 6 November 2026, the weapon list split in two. The 33 Modern Warfare 4 launch weapons, plus the new Season 1 additions, are what Activision calls the full weapon experience. Every weapon from Modern Warfare II through Black Ops 7 moved into a separate Legacy tab in the Loadout menu.

Activision did not simply strip those older guns back to bare base weapons. Each legacy base weapon is available in a five-attachment version, and any blueprint you own for a legacy weapon comes with its existing attachment setup. Raven's patch notes describe these as preset builds optimized for Warzone, meant to be ready to use without any Gunsmith work.

The guns are part of a wider carry-forward. Operators and Operator skins, weapon blueprints, calling cards, emblems, finishing moves, emotes, sprays, parachutes and contrails from those four games are all available in Season 1 Warzone. In-game, legacy weapons are marked with a unique icon and a "Legacy" label so you can tell them apart in your loadouts.

What You Can and Cannot Do With Them

The trade-off is simple to state: legacy weapons are usable, but frozen. The official blog lists the Modern Warfare 4 features they do not support.

• No Gunsmith editing: you cannot swap attachments on a legacy weapon or a legacy blueprint. You use the preset build or the blueprint as it was.
• No Mastery Camos: the new Warzone Mastery Camos, Parallax, Damascus Reforged and Empyros, are earned on Modern Warfare 4 weapons, not legacy ones.
• No Reticle Challenges: reticle unlocks belong to Modern Warfare 4 optics.
• No weapon or cosmetic customization: Activision lists both Weapon Customization and Cosmetic Gunsmithing as unsupported.
• No build sharing: because legacy guns use a featured preset, build codes and build sharing do not work for them.

Raven's UI notes say it in one line: legacy weapons can no longer be customized. If you were used to tuning an older meta build every season, that habit ends here. What you can still do is pick the gun, pick the blueprint and run it in any Warzone mode.

Why Your Legacy Weapons Are Locked

A common surprise in the first week of the season is opening the Legacy tab and finding guns you used for years marked as locked. That is by design. Activision's blog says legacy blueprints all start locked and are unlocked through Player XP in the Armory, and the patch notes confirm that each weapon's preset Warzone build has its own XP requirement.

1. From the Warzone menus, open Armory Unlocks to see the legacy weapons and the XP each one needs.
2. Choose the weapon you want and play matches to earn the required Player XP toward it.
3. Once unlocked, the legacy weapon appears in your loadouts with its Legacy icon.

Because the unlock uses Player XP, every match you play moves you toward it, whatever mode. That is also why the Season 1 Player Level reset matters: you are earning the same XP that drives your new Modern Warfare 4 level and Prestige track. Our guide to earning XP fast in Warzone lists the legitimate ways to speed that up, from daily challenges to Grind for Royalty.

One gap to be aware of: Raven's known issues list says there is no legacy blueprint available for the ROC 20MM at launch, so that weapon may not behave like the others until it is fixed.

How to Equip a Legacy Weapon

The patch notes spell out the path. It is the same on every platform.

1. Go to Create-a-Class and select a Primary or Secondary weapon slot.
2. Open the Legacy tab to see the legacy weapons you have unlocked.
3. Select a weapon to equip its preset Warzone build, or choose one of your available blueprints for it.

Season 1 also changed Warzone loadouts more broadly. Each loadout has a three-slot perk package, a primary and secondary weapon, and tactical and lethal equipment, and default loadouts are now visible in the front end. Mixing one legacy gun with one Modern Warfare 4 gun in the same loadout is allowed, since each slot is chosen separately.

Legacy or Modern Warfare 4: Which Should You Run?

For most players the answer is to treat legacy weapons as a side option, not a main loadout. The reasons are practical rather than about raw power.

• Progression: Modern Warfare 4 weapons level up, unlock attachments, support Weapon Prestige and feed the camo grind. A legacy gun does none of that, so every kill with it is a kill your Modern Warfare 4 guns did not get.
• Tuning: you cannot adjust a legacy preset to fix a weakness or adapt to a balance patch. Modern Warfare 4 guns can be rebuilt in Gunsmith after every update.
• Camos: Warzone camo progress, including the Mastery grind, only applies to Modern Warfare 4 weapons. Our existing guide to how the MW4 Warzone camo challenges work explains that track in detail.
• Balance focus: Raven says its balance approach this year is to give every weapon a distinct identity and keep the meta healthy with seasonal and mid-season updates. Those updates are written around the Modern Warfare 4 arsenal.

Where a legacy weapon does make sense is when you own a blueprint you love the look of and do not care about leveling, or when you want a familiar feel while you learn the new maps. If you are deciding between specific guns, our early Season 1 meta breakdown lists which Modern Warfare 4 weapons community trackers rate highest so far.

Replacing Your Legacy Favorites Early

If you are moving off legacy guns, the good news is that many Modern Warfare 4 weapons unlock almost immediately. Raven's patch notes list the Player Level each one needs, so you can plan which modern replacement to level first.

• Available right away: the Han 86 assault rifle is unlocked immediately, giving you a modern rifle to start leveling from your first match.
• Level 4: a large group arrives together, including the ISO Nightshade SMG, the Rezi 12 shotgun, the FiNN LMG, the MAR-9 marksman rifle, the KG-7 Vulcan sniper and the SANG 9mm pistol.
• Levels 9 to 14: the Type 73 LMG at 9, the Astaroth .57 sniper at 10, the Oris 8.6 bolt-action at 11, the VEL 46 SMG at 13 and the M4 at 14.
• Later unlocks: the Hyeon Burst and Wz.55 Striga at 21, the Patriot XMR and PPSh-41 at 27, and the Cronen Squall at 55.

A practical plan is to keep one legacy weapon you trust in your first loadout for comfort, pair it with the closest Modern Warfare 4 equivalent from the list above, and switch fully once the modern gun has a few attachments unlocked. If you liked a fast legacy SMG, the ISO Nightshade at level 4 is the natural stand-in. If you relied on a long-range rifle, the Han 86 is there from the start. The aim is to stop spending kills on a gun that cannot progress as soon as the modern replacement feels good enough.

Cosmetics and Other Carry-Forward Details

Legacy content is not just weapons, and a few related settings are worth knowing.

• Operator Skin Toggle: a new option lets you show only Modern Warfare 4 Operator skins on other players during gameplay. It does not change how your own Operator looks.
• Legacy emotes: Raven lists multiple legacy emotes as temporarily unavailable in its known issues.
• Older platforms: carry-forward content only follows your Activision account to supported hardware. If you last played on PS4 or Xbox One, our shutdown guide explains how to move.
• Coming back for Verdansk: if your favorite legacy guns were built for Verdansk, note that the map returns later in Season 1 with no date yet, as covered in our Verdansk return update.

Leveling the Guns That Do Progress

Since Modern Warfare 4 weapons are the ones that level, prestige and earn camos, they are where your Warzone time pays off long term. The store's MW4 hub collects its Modern Warfare 4 services, including max weapon levels and boosting, for players who would rather not grind every gun from level 1. If your focus is the shared Player Level track that also unlocks legacy blueprints, the MW4 Prestige Boost takes an account from its current Prestige up to a target as high as Prestige 10, completing levels 1 to 55 for each Prestige by hand on your own account. It is listed for PlayStation 5, Xbox Series X|S, PC and Nintendo Switch 2.

Frequently Asked Questions