MW4 DMZ FOB upgrades explained, and what to unlock first

In this article

1. Every FOB station and when it opens
2. How upgrades work
3. What to unlock first
4. The stash is smaller than you think
5. Operators and MIA recovery
6. Prestige is a long-term project
7. A practical first-week order

The Forward Operating Base is the part of DMZ you keep. Deployments reset your backpack, your found cash and your position, but the FOB keeps your stash, your bank, your Operators, your recipes and every permanent upgrade you have earned. Understanding it is the difference between starting each run from nothing and starting each run with a plan.

Activision's official FOB guide sets out the stations, their unlock levels and the upgrade economy. This is the practical reading of that system: what each station does, which ones matter first, and where the costs actually land.

Every FOB station and when it opens

The DMZ level cap is 70. Levels unlock stations, recipes, Survival Kits and upgrades; they do not reset between deployments.

How upgrades work

Permanent upgrades are bought at the 3D Printer, not at the station they improve. Each upgrade requires multiple prints to finish, so the FOB grows in stages rather than in one purchase. The official guide lists five core upgrade lines: bank capacity, stash item capacity, stash weapon capacity, MIA recovery discounts and increasingly rare ingredient printing.

Station upgrades add specific benefits: extra 3D Printer equipment types, an additional Active Duty Operator slot, Gunsmith discounts, more Vendor offers and higher Dog Tag Case bounty payouts. These are the upgrades that compound. A bank cap increase lets you carry more cash into the next Gunsmith purchase; a stash increase lets you keep the ingredients that pay for the next upgrade.

What to unlock first

1. The 3D Printer at level 2. This is the first real power spike. It turns loot into bandages, medkits, armour vests and backpacks, and it is the only place where permanent upgrades happen. Print a Medkit and a 1-Plate Armor Vest as soon as the ingredients allow; both directly extend a deployment.

2. The Vendor at level 5. Early runs often end with an empty stash and no weapon. The Vendor is the fastest way to rebuild a functional loadout with cash, and its stock rotates, so check it before every session.

3. The Gunsmith at level 10. This is where DMZ's weapon economy opens up. You can upgrade any weapon you extracted with, but purchasing a base weapon permanently requires its Weapon Manual. Start collecting manuals before level 10 so the station has something to work with on day one.

4. The Dog Tag Case at level 20. It is a trophy case and a protection system: favourited Dog Tags are the ones you do not want to lose. It is lower priority than the economy stations, but it matters once PvP becomes part of your runs.

The stash is smaller than you think

A new stash holds 40 items and 12 weapons, counted separately. Your Basic Pack has eight slots, and anything not in a secure slot is lost if you fail to extract. That combination punishes hoarding. Offload after every successful run, sell valuables you are not saving for an upgrade, and break down or spend resources rather than letting them crowd the stash.

Resources — Synthetics, Electronics, Chemicals and Metals — do not take stash slots. They are tracked separately and are the bulk material for crafting. 3D Printer Ingredients do take space, which is why the stash upgrade is worth more than it looks.

Operators and MIA recovery

You start with two Active Duty Operator slots; Vault Edition owners start with three, and progression can add another. Each Operator earns Trait Points through Dog Tag levels, up to 18, and those points buy Traits from the Warfighter, Scout and Survivalist trees.

If an Operator is eliminated, they become MIA. You can pay DMZ Cash from your bank to recover them with their Traits intact, or dismiss them and start again. The recovery cost rises with the number of Traits, and a recovered Operator returns without gear. That makes a high-Trait Operator valuable and expensive at the same time: build them, but do not treat them as disposable.

Prestige is a long-term project

Once an Operator has 18 Trait Points, they can Prestige. The first Prestige requires two Rare-or-better weapons with three attachment slots, a Rare plate carrier, a Rare backpack, four Rare ingredients and 200,000 DMZ Cash. Later Prestiges raise the rarity and the cash, and each one grants a random permanent Prestige Trait tied to that Operator. It is optional, and it is expensive. Treat it as a goal for a second or third Operator rather than something to rush on your first.

A practical first-week order

1. Reach DMZ level 2 and unlock the 3D Printer.
2. Print a Medkit and a 1-Plate vest; unpack a Survival Kit if you have one.
3. At level 5, buy a Vendor weapon for the next run instead of deploying with the free loadout.
4. Collect Weapon Manuals on every run from level 5 onward.
5. At level 10, build one reliable weapon and keep it in the stash rather than carrying it every time.
6. Upgrade the bank and stash before buying cosmetics or chasing Prestige.

The FOB rewards patience more than aggression. A player who extracts with a full backpack of ingredients and a Weapon Manual has advanced more than a player who wins three firefights and loses the loot.

Further reading

Sources & further reading

• Call of Duty — DMZ Deep Dive, Part 2: Forward Operating Base full intel guide ↗
• Call of Duty — DMZ Deep Dive, Part 1: Tour of Duty — Hajin environments and threats ↗
• Call of Duty — Modern Warfare 4 DMZ deep dive ↗

References reviewed 30 Oct 2026 AEST.

Corrections & editorial contact →