The MW4 X01 Deep Vault sits at the bottom of X01, a new enclosed Black Site that arrives in DMZ with Season 1 on November 6, 2026. The map is not live yet, so nobody has published a verified route, keycard or entry method. Instead, this guide covers what the announcements confirm, where sources disagree and how to prepare for launch day. I will update the steps once players test the vault.
⚡ Quick Intel: MW4 X01 Deep Vault
- Launch: Season 1, midnight ET Nov 6
- Access: Infil through Hajin’s northern border
- Vault position: Bottom of X01
- Keycard: Not confirmed
- Cost: Free update
When X01 Goes Live
Gamer Fuzion reports that Season 1 goes live at midnight ET on November 6, which is 11 PM CT on November 5. Windows Central and Dexerto agree on the November 6 date. Because the time is midnight Eastern, players on the West Coast get the update on the evening of November 5.
| Item | Detail |
|---|---|
| Release | Nov 6, 2026, midnight ET |
| Central time | 11 PM CT, Nov 5 |
| Pacific time | 9 PM PT, Nov 5 |
| Price | Free update, per Gamer Fuzion |
| Platforms | All platforms, per Gamer Fuzion only |
Windows Central does not state the platforms, so check the official Season 1 notice on launch day.
Where Is X01 in DMZ?
X01 sits at the edge of Hajin, the DMZ map. Dexerto describes it as “a previously undiscovered weapons facility located near the northern border of North Korea.” Windows Central says you infiltrate through Hajin, and Gamer Fuzion says players use the northern-border infil point.
However, the sources disagree on the facility’s history. Gamer Fuzion calls it a former Russian facility and a former GRANIT Arms black site that North Korean forces took over. Dexerto and Windows Central give no such backstory. As a result, I treat the backstory as unconfirmed and the northern-border location as the safer detail.
How to Enter the Deep Vault
No source describes the entry method. The Deep Vault is the one detail that remains blank, so I will not invent a path.
Here is what the sources do say about the route to it:
- Deploy through the northern-border infil. This reaches X01 from Hajin.
- Go underground. X01 has multiple floors, tunnels and corridors, and Gamer Fuzion says the vault sits at the bottom.
- Expect the facility to fight back. Gamer Fuzion says it starts closing extraction points while you are inside, and you must complete required steps to escape.
Therefore, plan for a long run, not a quick grab. Also, expect the usual DMZ risk that other squads explore the same facility, as Dexerto notes.
X01 Deep Vault Keycard Location
Gamer Fuzion does not mention a keycard. Dexerto does not describe keys either, although it links to a wiki page about DMZ keys and what they unlock. In short, I found no confirmed keycard, key location or access item for the Deep Vault.
| Item | Detail |
|---|---|
| Keycard needed | Not confirmed |
| Keycard location | Not confirmed |
| Unlock steps | Not confirmed |
| Vault location | Bottom of X01, per one source |
Because Season 1 adds many new DMZ Orders, check your mission list first. Dexerto says many of them are “likely to take you into X01,” so an Order may point you to the vault.
The Subterranean Layout
X01 is fully enclosed and has no outside edge. Gamer Fuzion lists tunnels, shifting hazards, cargo bays, labs and production lines, and Windows Central describes “a dimly lit, labyrinthian network of passageways, tunnels, and linking chambers” built around a weapons assembly line. The facility has vertical routes between floors.
Windows Central compares it to Building 21 from the original DMZ, so veterans of that map should expect tight fights and limited sight lines. Still, no source states the number of floors, so I cannot give a floor count for the vault.
The Captain and Other Bosses
Gamer Fuzion reports that The Captain is a Commander in X01. It describes him as a Juggernaut with his own elite guard. His Threat Briefing asks players to recover helmet sections from him. The same article names two Lieutenants, Knuckle and The Wrench, as separate targets.
I found these boss details in one source only. Dexerto and Windows Central do not mention bosses, so wait for launch before you build a plan around them. Also, I found no source that connects The Captain to the Deep Vault.
Enemies in X01
| Item | Detail |
|---|---|
| 100 Spirits | Troops and specialists patrol the facility |
| Stronger enemies | “More brutal entities,” per Gamer Fuzion |
| New enemy types | Two listed as classified |
| Rival squads | Also explore the map |
Windows Central warns that it may be unwise to fight the 100 Spirits head-to-head. Meanwhile, the developers classify the first two new enemy or item types, so expect surprises.
Deep Vault Loot
Both Gamer Fuzion and Dexerto say X01 holds loot you cannot find elsewhere in DMZ. No source names a single item, and none lists vault-specific rewards. Therefore, I cannot say what the Deep Vault pays out, how much it holds or how it compares with other vaults in Hajin.
How to Prepare for Launch Day
These tips are my advice, based on the confirmed details.
- Update early. Season 1 is a free update, so download it before midnight ET.
- Check your Orders. New missions may lead you to X01.
- Bring a full squad. Rival squads and the 100 Spirits both patrol.
- Carry escape options. Extraction points can close while you are inside.
- Stay flexible. Do not trust a vault route until several players confirm it.
For another extraction shooter with a late-game objective, see our Arena Breakout Infinite Corrupted Clock guide.
Common Mistakes to Avoid
- Trusting an early “location” map. No one has tested the vault.
- Searching Hajin for the vault. The sources place it inside X01.
- Skipping the Threat Briefing. It explains The Captain’s target.
- Staying too long. The facility closes extractions.
- Splitting up in tunnels. Tight corridors favor squads that stay together.
Last verified: November 2, 2026, against Gamer Fuzion, Dexerto and Windows Central. X01 is not live yet, so every detail comes from pre-launch reporting.
FAQs
When does X01 release in MW4 DMZ?
Season 1 goes live at midnight ET on November 6, 2026, which is 11 PM CT on November 5.
Where is the X01 Deep Vault?
At the bottom of X01, according to Gamer Fuzion. X01 sits near Hajin’s northern border.
How do I enter the Deep Vault?
Not confirmed. No source describes the entry method.
Do I need a keycard?
Not confirmed. No source mentions a Deep Vault keycard.
Who is The Captain?
A Commander and Juggernaut with an elite guard, according to Gamer Fuzion. Dexerto and Windows Central do not mention him.
What loot does the Deep Vault hold?
Not confirmed. Sources say only that X01 has unique loot.
For more updates visit: GAME SPEC
