The Deckhand Lockbox key requires some deep-sea diving to get its rewards.

The Deckhand Toolbox Key is one of several keys that unlock locations in Call of Duty's newest game mode, DMZ. Players can use the key to find some high-value loot in Al Mazrah in the new Tarkov-style mode.

Normally, players can load into games of DMZ as teams of three. Not the case when completing One Man Army.
Normally, players can load into games of DMZ as teams of three. Not the case when completing One Man Army.

Much like is the case with other keys in DMZ, the Deckhand Toolbox Key can be won by completing specific missions in the game. Players earn this key, in particular, in a mission called One Man Army.

How to complete the One Man Army mission

One Man Army is a Tier 1 mission in the Black Mous Faction in DMZ. That means that before being able to play the mission and complete it, players will need to get to Tier 2 in both the Legion and White Lotus Factions.

This mission entails pretty much what you would expect with a name like One Man Army. You have to load into DMZ without teammates and successfully exfiltrate from the map by yourself.

Players should turn off the squad fill feature before heading into the DMZ.
Players should turn off the squad fill feature before heading into the DMZ.

In order to make sure that you don't accidentally load into the DMZ map with teammates, you will need to turn off the squad fill option in the lobby. This will make sure that you are going to Al Mazrah alone. Here's the best way to get this mission done quickly:

  • Load into a DMZ game with squad fill turned OFF.
  • Make sure that mission One Man Army is active.
  • Bring your loadout with you to make sure you can deal with any AI or human enemies.
  • Upon entering the map, open up the HUD and look for the nearest exfiltration site.
  • Make your way straight to the exfil site.
  • Call in the exfil helicopter and protect the area until it arrives.
  • Get in and claim your rewards for successfully exfiltrating from DMZ.

That's the best and quickest way to get the One Man Army mission finished. Upon exfiltrating from the mission, players earn their rewards, including the Deckhand Lockbox key.

Where to find the Deckhand Lockbox

The Deckhand lockbox is in a very difficult-to-reach place in Al Mazrah. It's not somewhere that players would usually go. It is at the southernmost point in the map and on a sinking ship.

The Deckhand Lockbox is located in square E8 on the Al Mazrah map.
The Deckhand Lockbox is located in square E8 on the Al Mazrah map.

The closest point of interest to the sinking ship that you are looking for is Sariff Bay. The ship itself is in the E8 square on the Al Mazrag map. Players can access it on a boat or by swimming across the water.

Just reaching the boat is not enough to get to the lockbox, though. Infinity Ward have hidden the box underwater in the wreckage.

The lockbox is located underwater, making it difficult to access.
The lockbox is located underwater, making it difficult to access.

Players can find the box in a room that looks like living quarters in the sunken boat. Be careful not to mistake this box for the Captain's Cache, which is also located on the boat.

What loot do you get?

The reward for unlocking the toolbox varies. The game randomly assigns loot each time that the toolbox opens. Only one is available in each server of DMZ. It will provide some high-value loot that players can sell for money. You can then use that money to buy equipment and weapons to help complete other missions.


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