Modern Warfare 4 DMZ gets X01, an underground weapons facility, in Season 1

X01 arrives in DMZ on 6 November

Modern Warfare 4 Season 1 adds X01 to DMZ, a new high-risk location that Activision calls a previously undiscovered weapons facility. It goes live with the season on 6 November 2026.

X01 is not a separate map. You deploy into it through Hajin, the Exclusion Zone DMZ launched with (our Hajin POI rundown covers that map).

What X01 looks like

	X01	Hajin
Layout	Enclosed, multi-floor tunnels, corridors and chambers	Open outdoor map
Built around	A secret weapons assembly line	13 points of interest
Enemies	100 Spirits NK Faction troops and specialists, plus rival squads	AI patrols and rival squads

Both Dexerto and Destructoid describe the same thing: a maze of dark passages near North Korea’s northern border, where fights come from several directions at once. Rival squads are inside too, so expect PvP on top of the PvE.

The backstory depends on who you read. Destructoid says intel points to a former GRANIT Arms black site, and other summaries of Activision’s post describe a former Russian facility now held by North Korean forces. Either way, the enemy now holds it.

Ghost, new Orders and the loot question

• Ghost is your Watcher. The campaign character talks your squad through X01 as you push deeper.
• New DMZ Orders. Season 1 adds several new pages of Orders, plus FOB upgrades. Many of the Orders look likely to send you into X01, though Activision hasn’t listed them yet.
• Unique equipment. Activision says X01 holds gear you can’t get elsewhere, but it is still marked classified. We’ll update this when the season is live.

It is also not yet clear how X01’s threat level compares with Hajin’s toughest areas. Dexerto notes that this hasn’t been confirmed.

Sources we check

Activision’s Season 1 announcement, Dexerto and Destructoid, all published 28 October 2026. For the full season date, see Modern Warfare 4 Season 01 starts on 6 November.