Print Legendary materials at X01’s Production Assembly 3D Printer by carrying the required ingredients in your backpack, then extract with the finished materials.
In Call of Duty: Modern Warfare 4 DMZ, this station offers four Legendary ingredient recipes that the Forward Operating Base (FOB) printer cannot make. These materials feed into advanced armor, secure backpacks, and base upgrades. Choose your final crafting goal before entering X01 so you bring the correct parts and avoid spending ingredients you need for an emergency exit.
Where to find the X01 3D Printer
The printer sits in Production Assembly, near the center of X01’s lower floors. Its precise location is a small office on the western mezzanine, at grid E5 on the Data Center floor.
Follow this route once you reach Production Assembly:
- Move to the west side of the area.
- Find the ladder leading toward the stairs in the northern section.
- Follow the stairs to the mezzanine office.
- Look for the printer cabinet with the Print Item prompt.
Locate the Data Center printer
Complete the Crafting Material Order
Opening the printer menu also completes the Crafting Material task on the second X01 Orders page. You do not need to print anything for that task, so a visit can advance your Orders even when you lack a full recipe’s ingredients.
Legendary material recipes and required ingredients
The X01 printer offers four Legendary ingredients. Each recipe combines an Epic ingredient with a Rare ingredient. The table compares the exact printing costs with the materials’ alternative loot sources.
| Legendary material | Required backpack ingredients | Alternative source |
|---|---|---|
| Experimental Compounds | 2 Volatile Explosives, 5 Binding Catalyst | Occasional commander drops; can also appear as ground loot in Imjin Farmland |
| Military Composites | 2 Nylon Laminate, 5 Nylon Cloth | Colossus Commander |
| Nano-Structured Alloy | 2 Turned Components, 5 Structural Alloy | NK Battle Tank Commander |
| Prototype RF Module | 2 Power Regulator, 5 CPU | Deathstalker Commander |
Use Print Item to open the station, select the ingredient recipe you need, and check its requirements against your backpack. Print the material and collect the finished item before leaving the station.
Four Legendary crafting options
Should you print materials or hunt commanders?
Print when you already have the required Epic and Rare parts. You can choose the material you need without making its commander encounter the objective of the deployment.
A commander hunt remains an alternative when you lack the printing ingredients and need that commander’s specific material. Experimental Compounds also have a ground-loot route, but their possible appearance in Imjin Farmland is not a guaranteed pickup.
Where to collect the printing ingredients
Start by collecting the Epic component for your chosen recipe. These parts have specific locations worth checking before you commit to a printer run.
| Epic ingredient | Locations to search |
|---|---|
| Volatile Explosives | NuriGO Mall DRC lab, Citadel Prison Yard chemical buildings, and Imjin Farmland storage tents |
| Nylon Laminate | Citadel main building wings, Deadtown underground holding area, and Mujin Nightclub at the Heavenly Luck Casino |
| Turned Components | Imjin Farmland rice mill, Hajin City construction zone, and Namjjog Station |
| Power Regulator | Haneul Nuclear Reactor and electrical substations |
Bring radiation protection if you search the Haneul Nuclear Reactor. Treat these locations as places to check, not guaranteed ingredient spawns.
Find the Rare components
Search computers and tech bags for CPU, including those in X01’s offices and server rooms. For Structural Alloy, check the Chang-san Air Base hangar and repair bay, plus Bubun Yard.
Chemical storage in Tong-il Village and at Chang-san Air Base is worth checking for Binding Catalyst. For Nylon Cloth or any other missing component, open the relevant recipe and select Ingredient Locations to read the game’s location hint.
Check Power Regulator hints
Prepare Epic ingredients at the FOB
If you have already unlocked Epic Ingredient Printing, the FOB can produce all four Epic inputs used by these X01 recipes: Volatile Explosives, Nylon Laminate, Turned Components, and Power Regulator.
That upgrade helps prepare the parts for your trip. It does not add the four Legendary ingredient recipes to the FOB printer. Keep the required Rare parts for the X01 conversion instead of spending your entire supply on other crafts.
Reserve ingredients for your extraction
The X01 printer also makes two keycards. They serve different purposes, so choose the one that matches your route through the facility.
| Keycard | Printing cost | Purpose |
|---|---|---|
| Staff Emergency Exfil Keycard | 2 CPU, 4 Printed Circuit Board, 8 Control Unit | Opens Emergency Egress Shafts marked on the Tac-Map |
| Encodable Blank Keycard | 6 Printed Circuit Board, 8 Control Unit | Can be encoded at a Keycard Encoder Station for maintenance or executive access |
The Encodable Blank Keycard is not a substitute for the Staff Emergency Exfil Keycard. Print a blank card when you have a particular access door in mind; reserve the emergency card’s ingredients when a shaft is part of your extraction plan.
Watch the shared CPU cost
Prototype RF Module and Staff Emergency Exfil Keycard recipes both consume CPU. Printing one of each requires 7 CPU in total, alongside 2 Power Regulator, 4 Printed Circuit Board, and 8 Control Unit.
Count those shared ingredients before you start printing. Spending your last CPU on a Legendary material can leave you short of the card needed for your planned exit.
What to craft after extracting
The FOB’s 3D Printer unlocks at DMZ level 2. The equipment recipes below must also be found during deployments before you can craft them. Bringing home the ingredients does not unlock the corresponding equipment recipe.
Choose the finished item you want, then use its full ingredient bill to plan how much to collect.
| FOB equipment | Complete recipe | Equipment benefit |
|---|---|---|
| 3-Plate Ballistic Gel Vest | 2 Experimental Compounds, 4 Stabilized Reagents, 10 Biomaterials | Three-plate carrier with armor regeneration over time |
| Tempered Armor Vest | 2 Military Composites, 4 Ballistic Fabric, 10 Rigid Synthetics | Heavy plate carrier that uses enhanced plates |
| 3-Plate Helmet Armor Vest | 2 Nano-Structured Alloy, 4 Alloyed Plating, 10 Reactive Metals | Three-plate carrier that reduces headshot damage |
| Large Secure Backpack | 2 Prototype RF Module, 4 Alloyed Plating, 10 Rigid Synthetics | Large backpack with a weapon slot and four secure slots |
| Secure Scavenger Backpack | 2 Military Composites, 4 Nylon Laminate, 10 Reactive Metals | Large backpack with four secure slots and increased resource capacity |
Save Military Composites for ingredient printing
Military Composites also contribute to Epic Ingredient Printing. That upgrade costs $100,000 in in-game cash, 10 Binding Catalyst, 10 Printed Circuit Board, and 5 Military Composites.
If that upgrade is your next goal, set aside its five Military Composites before crafting a vest or backpack. Unlocking it lets you prepare the Epic inputs for later X01 printing trips at your FOB.
