Modern Warfare 4 DMZ Early Access Starts October 20: How the FOB and Operators Work

DMZ early access in Call of Duty: Modern Warfare 4 starts on Tuesday, October 20, three days before the game's October 23 launch. The Campaign gets its own early window on Friday, October 16. Both are limited to players who digitally pre-ordered or pre-purchased the Standard Digital Edition or the Vault Edition, and the benefit applies on Xbox Series X|S, Xbox on PC, PlayStation 5, Battle.net, Steam and Nintendo Switch 2.

The dates came with something larger: a full tour of the Forward Operating Base, the hub that now runs DMZ's permanent progression. That guide and its companion map breakdown are the first detailed look at how the mode is meant to work between matches.

Three dates that do different jobs

The two early access windows are separate, and the official blog says so in its own footnote. Campaign access opens October 16. DMZ access opens October 20. The game launches October 23.

The same footnote adds that play time is subject to possible outages and to time zone differences, and that platform availability and start dates are subject to change. The three-day head start is a scheduled benefit, and Call of Duty has left itself room to move it.

Access is tied to a digital purchase specifically. Pre-ordering or pre-purchasing either edition on any of the six listed storefronts is what unlocks the window.

Hajin is the map, and the loop is still extraction

DMZ drops you into Hajin, an open-world combat environment the blog calls the Exclusion Zone. You explore, loot, fight AI forces and rival Operators, complete objectives and craft gear, then extract with whatever you are still holding. Squads and solo play are both supported.

Hajin has 14 named points of interest, among them the 14th Political Prison, Chang-san Air Base, Deadtown, Imjin Farmland, Cheongun Village, Mirae General Hospital, Cheonwang Peak Array, Haneul Nuclear Reactor, NuriGO Mall, The Grid, Songdo Wharf, Wolves Stadium and Hajin River Heights. The companion guide also covers enemy threat levels, land, rail, water and air transport, and an after-action report shown at the end of each deployment.

The Forward Operating Base runs the mode between deployments

The Forward Operating Base, or FOB, is reached from the DMZ main menu. It holds your loot and your permanent progression, and it is built out of stations that open at different points.

Six are available immediately: Operators, DMZ Orders, Stash and Loadout, Firing Range, Survival Kits and the Bounty Leaderboard. The Firing Range places targets from close range out beyond 100 meters.

The rest open with progress. The 3D Printer arrives at DMZ player level 2 and does two jobs, crafting gear and upgrading other stations. The Boss Board opens after your second DMZ Order. The Vendor arrives at level 5 and rotates its stock day to day. The Gunsmith unlocks at level 10 and spends in-game DMZ Cash, but it gates weapon purchases behind Weapon Manuals that have to be found in Hajin and extracted. The Dog Tag Case unlocks at level 20.

Weapons built in the Gunsmith accept up to five attachments, while weapons found in Hajin can carry up to eight. There are 32 launch weapons across eight categories.

Operators, Dog Tags and what death costs you

DMZ gives you two Active Duty Operator slots to start, with a third unlocked by progressing your DMZ level. Vault Edition owners get an extra slot and begin with three.

An Operator is locked to a slot once recruited. You can change their skin, but you cannot swap the character out without dismissing them, and you cannot run the same character in two slots.

Progression runs through Dog Tags. A Dog Tag moves through Steel, Bronze, Silver, Gold, Damascus and Onyx, each in three grades, for 18 levels in total. Every level gained with an Operator awards one Trait Point.

Those points go into three trees: Warfighter, Scout and Survivalist. DMZ has 66 Traits, split evenly at 22 per tree, and each tree holds six Major Traits that stay visible plus 16 randomized Minor Traits. A single Operator can earn at most 18 Trait Points, which is enough to finish two trees or to spread thinner across all three. Once you pick a Trait it is locked in.

Losing an Operator is expensive. An eliminated Operator becomes MIA and cannot deploy again until you pay DMZ Cash from your in-game Bank to recover them, and the bill scales with the number of Traits they carry. Recovered Operators return without their gear.

At 18 Trait Points an Operator can Prestige, provided they are not MIA. Each Prestige permanently attaches a random Prestige Trait to that individual character, and an Operator can hold up to three. DMZ also runs its own progression track to level 70, which hands out Printer Recipes and station unlocks.

Bosses, bounties and three ways to deploy

The Boss Board is where Hajin's high-value targets live. Lieutenants need purchased intel, bought with DMZ Cash, and that intel is only good for one deployment. A Lieutenant's Dog Tag Case always drops, and picking it up broadcasts your position to rival squads, which is why the blog says an immediate exfil is critical.

Commanders cannot be tracked with purchased intel. They are always somewhere in Hajin, they appear on your Tac Map when close, and your Team Leader warns you about them. The blog names three. Colossus is a seven-foot armoured soldier carrying a minigun that fires depleted uranium rounds. Deathstalker is a helicopter-sized autonomous drone with dual machinegun turrets. The third is a North Korean battle tank on patrol.

Xbox Wire lists three ways to deploy. Story Missions are narrative-led and replayable, with some locked behind prerequisites. Dynamic Operations let a squad pick an objective set and earn DMZ XP, Cash and a Supply Drop of unpredictable loot. The third is Free Roam. Bank and Stash contents are shared across every Active Duty Operator, so a Scout built for looting can feed gear to a different character.

Dates that can move, and details the blogs skip

Neither blog gives a price for DMZ or says whether it will be sold separately from Modern Warfare 4. There is no mention of a beta or a public test. Nothing states whether progress from the earlier DMZ carries into this one, and squad size, cross-progression and anti-cheat plans are all absent.

The dates carry the standard warning that they can move. For a three-day window tied to a purchase, that is worth tracking rather than assuming.

What the guides do establish is the shape of the mode. DMZ has a station-based base, its own 70-level track, and an Operator system where losing a character costs DMZ Cash and all of their gear. That is the part to understand before October 20.