Your Forward Operating Base is the home screen of MW4 DMZ, and it unlocks one station at a time as you climb the DMZ Player Level. The headline unlocks are the 3D Printer at level 2, the Vendor at level 5, the Gunsmith at level 10 and the Dog Tag Case at level 20, with Printer Recipes and an extra Active Duty Operator slot arriving at points along the way.
Each station changes how you prepare for a deployment, so knowing what comes next tells you what to prioritise. This guide walks through every FOB station in the order you unlock it, what upgrading it actually does, and how the base ties into the cash, materials and valuables you bring home from Hajin.
How FOB unlocks work
The FOB is gated behind your DMZ Player Level, the mode's own 1-70 track that is separate from your 1-55 account level. As you earn DMZ XP, stations come online automatically at set ranks. Because the first unlocks sit low on the track, you get the most important tools quickly, then spend the mid and late levels deepening them with cash and materials.
There are two kinds of progress here. Reaching a level opens a station; after that, you pour DMZ Cash, valuables and crafting materials into upgrades that make the station better. The two feed each other, which is why leveling and looting go hand in hand. If you want the leveling side covered, our guide to leveling up fast in DMZ lists the best XP sources.
| Station | Unlocks at | What it does |
|---|---|---|
| 3D Printer | Level 2 | Crafts vests, backpacks and gear from Ingredients and Resources |
| Vendor | Level 5 | Sells weapons and items for DMZ Cash |
| Gunsmith | Level 10 | Buys base weapons and attachment slots once manuals are extracted |
| Dog Tag Case | Level 20 | Stores and tracks Lieutenant Dog Tags and Boss Board progress |
| Printer Recipes and extra Operator slot | Along the track | More craftable items and another Active Duty Operator |
The 3D Printer (Level 2)
The 3D Printer is the first station you unlock and arguably the most important, because it is where your gear comes from in Modern Warfare 4's DMZ. Rather than relying on cooldown-based insured slots, you print plate carriers, backpacks and equipment using two kinds of materials: Resources and Ingredients.
Resources are the automatic materials your looted junk breaks down into, while Ingredients such as Biomaterials, Reactive Metals, Military Composites and the Prototype RF Module are specific items you have to find and extract. The printer can pin a recipe so the game flags its ingredients in the field, and unlocking more Printer Recipes as you level widens what you can build. Our DMZ items guide covers how Resources and Ingredients differ in detail.
The Vendor (Level 5)
The Vendor opens at level 5 and is your cash shop. It sells weapons and other items for DMZ Cash, giving you a way to spend the money you bank from runs without having to loot a specific gun on the map. It pairs naturally with the printer: the printer handles gear you can craft, the Vendor handles things you would rather just buy.
The Gunsmith (Level 10)
The Gunsmith is where weapons become serious. It unlocks at level 10, but it has its own gate on top of your level: you can only buy a base weapon here once you have found and extracted that weapon's Weapon Manual. There are 29 manuals in total, and once a manual is extracted you can rebuy that base gun any time.
Buying the gun is just the start. You then spend DMZ Cash on Attachment Slots, with each slot costing more than the last, so a fully kitted weapon is a real investment of the cash you bring home. FOB upgrades can also apply Gunsmith discounts, which is one of the better long-term uses for the valuables you extract. For the weapon side of the economy, see our MW4 best guns guide.
The Dog Tag Case (Level 20)
At level 20 you unlock the Dog Tag Case, which stores the Dog Tags you collect from Lieutenants and tracks your Boss Board progress. Extracting with a Lieutenant's Dog Tag broadcasts your position and turns the exfil into a fight, so the Dog Tag Case is the payoff for taking that risk. FOB upgrades can expand its storage so you can bank more tags between boss hunts.
Operator slots, prestige and rescues
Along the track you also earn an extra Active Duty Operator slot, letting you field more Operators who share the same Stash, Bank and materials. The base is also where you spend cash on the big-ticket items: Operator Prestige costs roughly 200,000 DMZ Cash the first time and around 300,000 the second, and rescuing an MIA Operator costs an amount that scales with how many Trait Points that Operator had.
Because so much of the FOB runs on cash, valuables and materials, the base rewards players who extract consistently rather than die with full backpacks. Gold Bars, Gold Skulls and the Cipher Code Ledger, together with crafting Ingredients, are what fund the upgrades that make Gunsmith purchases cheaper and Dog Tag storage larger.
What to prioritise
If you are early, race to level 5 to open the Vendor, then to level 10 for the Gunsmith, since those two stations do the most to make you survivable. Keep extracting Weapon Manuals as you go so the Gunsmith is useful the moment it unlocks. Our DMZ player level rewards guide maps the whole 1-70 track so you can see what each rank gives you.
If you would rather skip the early grind and arrive with the FOB stations already open, you can have a DMZ level boost done for you and start with the printer, Vendor and Gunsmith ready to use. The upgrade priorities above still apply once you are there.
Fueling your upgrades: cash, valuables and materials
Unlocking a station is only half the story; the other half is feeding it. The FOB runs on three kinds of input, and understanding where each comes from tells you what to loot. DMZ Cash, banked only after a successful exfil and shared across your Active Duty Operators, is what you spend at the Vendor and Gunsmith and on the big-ticket items like Operator Prestige. The Bank has a maximum, so there is little point hoarding far beyond what your next purchases need.
Valuables are the second input. Gold Bars, Gold Skulls and the Cipher Code Ledger carry a gem icon and can either be sold for cash or kept to fund FOB upgrades such as Gunsmith discounts and extra Dog Tag Case storage. Deciding whether to sell or bank them depends on what you are upgrading next, so it pays to know your goals before you extract.
Crafting materials are the third. Resources break down automatically into Synthetics, Electronics, Chemicals and Metals and feed the 3D Printer, while Ingredients like Biomaterials, Reactive Metals and the Prototype RF Module are specific items you have to extract to craft the better vests, backpacks and gear. Commanders are one reliable source of prized Ingredients. Because materials and valuables both power upgrades, consistent extraction matters more than any single big haul; a station improves fastest for the player who gets out alive again and again.
A sensible upgrade order for a new base
With so many things to spend cash and materials on, a clear order of operations keeps you from spreading yourself thin. For most players the first priority after unlocking the printer is a better backpack, because more slots and, crucially, Secure Slots let you protect your most valuable finds even on a failed exfil. A bigger pack pays for itself quickly by reducing what you lose on a bad run.
Next comes a stronger vest, since surviving longer directly translates into more objectives cleared and more cash banked. Only once you are durable and carrying well should you pour serious cash into the Gunsmith, buying out attachment slots on a weapon whose manual you have extracted. Weapon upgrades are powerful but expensive and, unlike traits, can be lost, so they are best funded from a position of stability rather than at the cost of your survivability.
Valuables-funded FOB upgrades like Gunsmith discounts sit alongside this as long-term investments. If you expect to buy a lot of weapons, an early discount upgrade pays back over dozens of purchases, whereas extra Dog Tag storage only matters once you are actively hunting Lieutenants. Match your spending to how you actually play rather than upgrading everything evenly.
Frequently Asked Questions
What level is the 3D Printer in MW4 DMZ?
It unlocks at DMZ Player Level 2, making it the first FOB station you get. It crafts vests, backpacks and gear from Resources and Ingredients.
When does the Gunsmith unlock?
At DMZ level 10. On top of that, each base weapon only becomes buyable there after you have extracted its Weapon Manual.
What is the Dog Tag Case for?
Unlocked at level 20, it stores Lieutenant Dog Tags and tracks your Boss Board progress. FOB upgrades can expand its capacity.
Is the FOB shared across Operators?
Yes. The Stash, DMZ Cash, Resources and Ingredients are shared across your Active Duty Operators, and extra Operator slots unlock along the level track.
How do I pay for FOB upgrades?
With valuables and materials you extract, such as Gold Bars, Gold Skulls and the Cipher Code Ledger alongside crafting Ingredients. These fund Gunsmith discounts and extra Dog Tag storage.
Which station should I rush first?
Push to the Vendor at level 5 and the Gunsmith at level 10, since those make you most survivable. Keep extracting Weapon Manuals so the Gunsmith is useful immediately.