Kurohana Ship NFC Card
NFC cardReported- Opens
- Secure room aboard the Kurohana Ship
- Door
- Kurohana Ship secure room
- Found
- 1 Reported in the Port / ferry area (approximate)
- Loot
- High-tier loot reported; pair the room with the ship exfil.
Serpent Island
medium danger
Large open map / Battle Royale style
3-player squads (Quick Play: up to four squads, northern POIs only)
The big open map: a dozen points of interest, long rotations and an offshore ship exfil.
Serpent Island is brand new to the series and the largest DMZ: Recon map. Points of interest borrow from fan-favorite Call of Duty maps. Community guides count between 10 and 12 major POIs; the list below uses the names that show up most consistently.
Added: Season 11 (2025) · DMZ: Recon launch, Dec 11, 2025
Keys & access doors (4 listed)
Business District Access Card
Key cardReported- Opens
- Central Business District key door
- Door
- CBD key door
- Found
- 1 Reported inside the Business District (approximate)
- Loot
- Unconfirmed.
Train Station NFC Card
NFC cardUnconfirmed- Opens
- Train Station secure room
- Door
- Train Station (POI name not on official lists; shown near Serpent Town)
- Found
- No pickup location reported yet.
- Loot
- Unconfirmed.
Hotel NFC Card
NFC cardUnconfirmed- Opens
- Hotel secure room
- Door
- Hotel (POI name not on official lists; shown in Residential)
- Found
- No pickup location reported yet.
- Loot
- Unconfirmed.
Bosses
Kui Ji
OfficialKurohana Ship (moves near his spawn)
Ryotaro "Kui Ji" Nagashima. Sword boss: sprints and dashes at you, deflects fire with his blade and has a hard-to-escape execution. Hitting him fills a stun meter; when it breaks he staggers and takes full damage. Fight at range and never let him close the gap. Defeat him for rare cosmetics, which you keep only if you exfil with them.
The Tank
OfficialRoams near its spawn point
Serpent Island's second boss per the Call of Duty Wiki. Heavy armor; bring a launcher and plates. Reward table not confirmed.
Mechanics
- There are five exfil types; the official interactive Serpent Island tac map shows where each can appear in a match. Community reports describe activating a train or a boat before some exfils (unconfirmed).
- A radiation cloud closes in over the match. Plan the exfil before the cloud forces you across open ground.
- Standard mode: the exfil switch is on the Kurohana Ship. Quick Play (added Season 3, 2026): northern POIs only, up to four squads, switch moved outside the Ship.
- Community guides count roughly ten key cards across the island, each opening a matching secret room. Four are mapped here; help us place the rest.
- Safes can be cracked with a mini-game for loot; expect AI to converge while you do.
Squad tips
- Land on the edge of a POI, not the middle: AI aggro plus a rival squad on the same roof ends runs early.
- Contracts are the safest loot on the map. Chain two near your exfil instead of looting the Fortress.
- Vehicles and boats are loud. Ditch them 150 m out and walk in.
Zones
| Zone | Danger | Notes |
|---|---|---|
| Kurohana Base | high | Submarine base in the north-west. Heavy loot, heavy AI. |
| Observatory | medium | High ground over the north half. Part of the Quick Play area. |
| Refinery | medium | |
| Serpent Town | medium | Dense buildings, lots of contracts. |
| Serpent's Fortress | high | Center of the island. Stronghold-style fights. |
| Central Business District | high | Tall buildings, a key door and the most contested loot on the east side. |
| Beach | low | |
| Port | medium | Boats and the ferry to the Kurohana Ship. |
| Residential | low | |
| Kurohana Ship | high | Offshore. Holds the exfil switch in standard mode (moved outside the Ship in Quick Play). |