MW4 DMZ / FIELD NOTES
The 3D printer tells you roughly where each ingredient lives and then leaves you to work out the rest. We have put all 20 Rare, Epic and Legendary ingredients on our Hajin map as three layers you can switch on one rarity at a time. The game's own hint areas are dashed rings, and what players actually found are small solid ones. COD Central's field reports are credited by name, and we say plainly where we have nothing to show. We have not played any of it ourselves.
The 3D printer has an Ingredient Locations hint that names places for each ingredient. It comes in pairs: a Rare ingredient and the Epic one it feeds share a hint, and 3 Rare plus 100 of a base resource print 1 Epic. We mapped those pairs as dashed rings with one marker per rarity, so you can switch Rare and Epic on and off separately. A Rare ingredient is worth $500. The two Epic ingredients we have seen priced, Turned Components and Volatile Explosives, are worth $1,500. Legendary ingredients come from Commanders, apart from one Experimental Compounds that COD Central reports loose on a road. It is worth $3,500. We left the seven Uncommon ingredients off the map: Biomaterials, Control Unit, Detonators, Electronic Sensors, Reactive Metals, Rigid Synthetics and Regional Combat Notes. The game's hint for them says any container, so there is no place to draw. Our 3D printer farming guide lists them in its ingredient finder.
Open the Hajin map with the three ingredient layers on. In the sidebar, under Farming, Rare is blue, Epic purple and Legendary gold, and each has its own checkbox, so switching off Epic hides only the Epic markers. The search box finds an ingredient or a rarity, so Stock Rod and Epic both work. A dashed ring is the game's hint: an area centred on the place it names. A small solid ring is a field report: someone found that ingredient at that place, and the card says in which container and who reported it. Where a Rare and an Epic share a place their badges sit side by side, so both stay visible. The Commanders layer is on in the link below because the three Commander-only Legendary ingredients belong to it. The precision is limited, and we would rather say so. The hint rings are areas taken from the game's own text, not spawn points. The reports are place level, from COD Central (21 to 24 October 2026), Schlayer, Eakr and TheSpazo. Containers are random, and a ring can be off by a building. Nothing here was played by us, and the North Korean Wilderness find has no pin because we cannot place it.
Eight Rare ingredients. Each card gives the game's hint, what players found and where, the DMZ level that rewards it, and the Epic it feeds. Field reports are other people's finds, credited to them.
Game hint: Chang-san Air Base hangar and repair bay; Bubun Yard (not on our map). Field reports: Construction Zone (inside the Commander Tank's wreck; TheSpazo). DMZ level reward: level 43. Feeds Alloyed Plating: 3 Structural Alloy + 100 Metals prints 1 Alloyed Plating.
Game hint: Chang-san Air Base armory and barracks; La Grande Vie rooftop, Songdo Wharf. Field reports: Namjin Riverside (shelf in a house; COD Central); a Colossus kill (one recorded; our 3D printer farming guide). DMZ level reward: level 53. Feeds Ballistic Fabric: 3 High-Tenacity Fibers + 100 Synthetics prints 1 Ballistic Fabric.
Game hint: Nenshin Tech Complex server rooms; Cheonwang Peak Array server rooms; Deadtown hillside facade buildings. Field reports: Mirae General Hospital (PC cache in a hospital office during Operation Critical Extraction; COD Central); Cheongun Village police station (cache in the police station; COD Central); Cheonwang Peak Array (server blade, also seen on camera in Schlayer's video; COD Central); Compound Charlie (the computer decrypted in the Toxic Intercept Dynamic Op; COD Central); Deadtown hillside (seen in Eakr's video; Eakr). DMZ level reward: level 44. Feeds Comms Module: 3 CPU + 100 Electronics prints 1 Comms Module.
Game hint: NuriGO Mall DRC lab; Citadel Prison Yard chemical buildings; Imjin Farmland storage tents. Field reports: NuriGO Mall (chemical storage during Operation Shopping Hacks; COD Central). DMZ level reward: level 47. Feeds Volatile Explosives: 3 Nitro Compounds + 100 Chemicals prints 1 Volatile Explosives.
Game hint: Citadel main building wings; Deadtown underground holding area; Heavenly Luck Casino Mujin Nightclub. Field reports: Imjin Farmland (duffel; COD Central). DMZ level reward: level 57. Feeds Nylon Laminate: 3 Nylon Cloth + 100 Synthetics prints 1 Nylon Laminate.
Game hint: Haneul Nuclear Reactor; electrical substations (not on our map). Field reports: Chang-san Air Base Bunker (loose on a shelf; COD Central); Deadtown hillside (seen in Eakr's video; Eakr); Construction Zone (inside the Commander Tank's wreck; TheSpazo); a Deathstalker wreck (in the wreck; our 3D printer farming guide). DMZ level reward: level 56. Feeds Power Regulator: 3 Printed Circuit Board + 100 Electronics prints 1 Power Regulator.
Game hint: Mirae General Hospital; medical tents (not on our map). Field reports: Tong-il Village (chemical storage; COD Central); Chang-san Air Base (chemical storage; COD Central); Chang-san Air Base Bunker (first aid kit; COD Central); Namjin Riverside (medicine cabinet; COD Central). DMZ level reward: level 49. Feeds Stabilized Reagents: 3 Binding Catalyst + 100 Chemicals prints 1 Stabilized Reagents.
Game hint: Imjin Farmland rice mill; Hajin City construction zone; Namjjog Station (not on our map). Field reports: Rice Mill (tool chest and tool box; COD Central); Compound Alpha (tool box; COD Central); Construction Zone (inside the Commander Tank's wreck; TheSpazo). DMZ level reward: level 51. Feeds Turned Components: 3 Stock Rod + 100 Metals prints 1 Turned Components.
Eight Epic ingredients. Each shares its hint with the Rare one that feeds it, so its rings sit in the same places. Printing them needs the Epic Ingredient Printing upgrade, covered further down. Most have no field report at all, and the card says so.
Game hint: Chang-san Air Base hangar and repair bay; Bubun Yard (not on our map). No field report yet, so this one rests on the game's hint alone. Printed from 3 Structural Alloy + 100 Metals once the Epic Ingredient Printing upgrade is bought.
Game hint: Chang-san Air Base armory and barracks; La Grande Vie rooftop, Songdo Wharf. No field report yet, so this one rests on the game's hint alone. Printed from 3 High-Tenacity Fibers + 100 Synthetics once the Epic Ingredient Printing upgrade is bought.
Game hint: Nenshin Tech Complex server rooms; Cheonwang Peak Array server rooms; Deadtown hillside facade buildings. Field reports: Deadtown hillside (seen in Eakr's video; Eakr). Printed from 3 CPU + 100 Electronics once the Epic Ingredient Printing upgrade is bought.
Game hint: Citadel main building wings; Deadtown underground holding area; Heavenly Luck Casino Mujin Nightclub. Field reports: Construction Zone (inside the Commander Tank's wreck; TheSpazo). Printed from 3 Nylon Cloth + 100 Synthetics once the Epic Ingredient Printing upgrade is bought.
Game hint: Haneul Nuclear Reactor; electrical substations (not on our map). Field reports: Cheonwang Peak Array (on camera; Schlayer). Printed from 3 Printed Circuit Board + 100 Electronics once the Epic Ingredient Printing upgrade is bought.
Game hint: Mirae General Hospital; medical tents (not on our map). No field report yet, so this one rests on the game's hint alone. Printed from 3 Binding Catalyst + 100 Chemicals once the Epic Ingredient Printing upgrade is bought.
Game hint: Imjin Farmland rice mill; Hajin City construction zone; Namjjog Station (not on our map). Field reports: Construction Zone (hidden cache during the Special Delivery Dynamic Op; COD Central); North Korean Wilderness (industrial locker; COD Central). Printed from 3 Stock Rod + 100 Metals once the Epic Ingredient Printing upgrade is bought.
Game hint: NuriGO Mall DRC lab; Citadel Prison Yard chemical buildings; Imjin Farmland storage tents. Field reports: Oamsik Turtle Islands (hidden cache of the Dead Man's Cache Dynamic Op; COD Central); Construction Zone (inside the Commander Tank's wreck; TheSpazo); a Deathstalker wreck (in the wreck; our 3D printer farming guide). Printed from 3 Nitro Compounds + 100 Chemicals once the Epic Ingredient Printing upgrade is bought.
Four Legendary ingredients. Military Composites, Prototype RF Module and Nano-Structured Alloy drop only from Commanders, so they have no ring of their own: the Commanders layer shows where people have met Colossus, Deathstalker and Tank. Experimental Compounds is occasionally on a Commander, and COD Central reports one loose on a road at Imjin Farmland, which is the single Legendary ring. Our 3D printer farming guide has a section for each Commander.
Game hint: Colossus. It drops from the Commander Colossus. The Commanders layer shows the places people have met him. No field report away from a Commander.
Game hint: Deathstalker. It drops from the Commander Deathstalker, in the wreck containers. The Commanders layer shows where people have met it. No field report away from a Commander.
Game hint: Tank. Community sites list it as a drop from the Commander Tank. TheSpazo's Tank wreck showed no such card when we read it. No field report away from a Commander.
Game hint: occasionally on Commanders. Colossus sometimes drops it. COD Central reports one loose on the road at Imjin Farmland, which is the single Legendary ring on the map. Field report: Imjin Farmland (loose on the road, COD Central).
Colossus, in the farming guide → Tank, in the farming guide → Deathstalker, in the farming guide →
If you would rather pick a place than an ingredient, this is the same hint turned around. The first column links to the map.
| Area | Rare | Epic | Worth knowing |
|---|---|---|---|
| Chang-san Air Base | Structural Alloy, High-Tenacity Fibers, Binding Catalyst, Printed Circuit Board | Alloyed Plating, Ballistic Fabric | Four hint spots share one ring: hangar, repair bay, armory and barracks. Binding Catalyst and Printed Circuit Board are field reports. Threat runs Critical to Extreme, and the bunker is Extreme. |
| Server rooms: Nenshin Tech Complex, Cheonwang Peak Array | CPU | Comms Module | A Power Regulator was also seen at Peak Array. The in-game sign reads NETSHIN. |
| Deadtown hillside | CPU, Printed Circuit Board | Comms Module | Six buildings in a row. Eakr found Comms Modules in PCs, usually on second floors. |
| Citadel, Deadtown underground, Heavenly Luck Casino | Nylon Cloth | Nylon Laminate | The Citadel main building wings, the Deadtown underground holding area and the Mujin Nightclub. A duffel at Imjin Farmland also held Nylon Cloth. |
| NuriGO Mall, Citadel Prison Yard, Imjin Farmland | Nitro Compounds | Volatile Explosives | The NuriGO Mall DRC lab, the Prison Yard chemical buildings and the Imjin storage tents. Reports add a hidden cache on the Oamsik Turtle Islands. |
| Rice Mill, Construction Zone | Stock Rod | Turned Components | The Imjin Farmland rice mill and the Hajin City construction zone. Namjjog Station is in the hint too but is not placed. |
| Haneul Nuclear Reactor | Printed Circuit Board | Power Regulator | Schlayer calls the reactor the best Power Regulator spot. The electrical substations are not placed. |
| Mirae General Hospital | Binding Catalyst | Stabilized Reagents | The medical tents count too, and we ring them with the hospital. Binding Catalyst also turns up in chemical storage elsewhere. |
| Songdo Wharf | High-Tenacity Fibers | Ballistic Fabric | The La Grande Vie rooftop. |
The printer needs two upgrades before it makes ingredients. Both costs below come from COD Central's screenshots of the upgrade screens. We have not bought either. The catch is Comms Module. The Uncommon upgrade asks for five of them, and you cannot print one until the Epic upgrade is bought, so the first five have to be found, in server rooms or on the Deadtown hillside. Our reading is that the Epic upgrade asks for five Military Composites, which only Colossus drops, so Colossus has to fall before the first Epic prints. One money note. COD Central says the bank starts capped at $100,000 and that Bank Upgrade I raises the cap to $250,000 for $20,000. We have not tested it. If that cap is right, the Epic upgrade costs exactly what the bank can hold.
| Upgrade | Cost | Needs | Prints |
|---|---|---|---|
| Uncommon Ingredient Printing | $50,000 | 20 Biomaterials, 10 High-Tenacity Fibers, 5 Comms Module | The 6 Uncommon ingredients it prints, at 20 + 20 base resources each. |
| Epic Ingredient Printing | $100,000 | 10 Binding Catalyst, 10 Printed Circuit Board, 5 Military Composites | The 8 Epic ingredients, at 100 base resource + 3 Rare each. |
We show both sides and do not settle them. Nothing below is tested by us.
| Topic | One source says | Another says | What we did |
|---|---|---|---|
| Rarity of three boss drops | COD Central labels Military Composites, Nano-Structured Alloy and Prototype RF Module only as boss drops. | dmzhub's item pages and our own notes call them Legendary. | We use Legendary. |
| Upgrade use counts | COD Central's screenshots show the two printing upgrades above. | Other databases list higher upgrade tiers for some ingredients too. | We have not verified those tiers, so we print none of them. |
| Where the Tank is | The hint and community sites put it at NuriGO Mall. | TheSpazo met it at the Construction Zone. | Both rings are on the Commanders layer. |
| Nenshin or Netshin | The official map spells it Nenshin. | The in-game sign reads NETSHIN, per COD Central. | We use the official spelling and note the sign. |
| Oamsik Turtle Islands | The official map says Oamsik Turtle Islands. | COD Central writes Island. | We use the official spelling. |
| Nano-Structured Alloy from the Tank | Community sites list it as a Tank drop. | In TheSpazo's wreck we read no such card. | Shown on its Legendary card, untested. |
| Epic prices | COD Central's tooltips show $1,500 on Volatile Explosives and Turned Components. | We have not seen the other six Epic ingredients priced. | We print $1,500 for those two only. |
Five places in the hint and the reports have no pin. We would rather list them than guess.
| Place | What names it | Why there is no pin |
|---|---|---|
| Bubun Yard | The hint, for Structural Alloy and Alloyed Plating. | We have not placed it on the map. |
| Namjjog Station | The hint, for Stock Rod and Turned Components. | We have not placed it on the map. |
| Electrical substations | The hint, for Printed Circuit Board and Power Regulator. | No substation is placed on our map. |
| Medical tents | The hint, for Binding Catalyst and Stabilized Reagents. | We ring them with Mirae General Hospital instead of one by one. |
| North Korean Wilderness | A COD Central report of Turned Components in an industrial locker. | It is not a point on our map, so it is listed here only. |
Quick answers about MW4 DMZ ingredient locations.
The game's hint names the Nenshin Tech Complex server rooms, the Cheonwang Peak Array server rooms and the Deadtown hillside facade buildings. Eakr found them in PCs on the hillside, usually on second floors. The Uncommon Ingredient Printing upgrade needs five.
Rare: Binding Catalyst, CPU, High-Tenacity Fibers, Nitro Compounds, Nylon Cloth, Printed Circuit Board, Stock Rod and Structural Alloy. Epic: Alloyed Plating, Ballistic Fabric, Comms Module, Nylon Laminate, Power Regulator, Stabilized Reagents, Turned Components and Volatile Explosives. Legendary: Experimental Compounds, Military Composites, Nano-Structured Alloy and Prototype RF Module.
Three, plus 100 of a base resource, once the Epic Ingredient Printing upgrade is bought for $100,000.
The game's hint for them says any container, so there is no place to draw. They are in the ingredient finder of our 3D printer farming guide.
No. A dashed ring is an area from the game's hint, and a small solid ring is a place where someone found the ingredient. Containers are random, and we have not played any of this ourselves.
The notes do not mention it. We say not mentioned and not unchanged, because the notes list only what Infinity Ward chose to list.
We have not placed either yet. Both are in the game's hint, so they stay in the text and off the map.
From Colossus. The Commanders layer shows where people have met him, and our 3D printer farming guide has the fight notes.
Written source: Zorex, "Where to Find Every MW4 DMZ 3D Printer Ingredient", COD Central, published 21 October 2026 and updated 24 October 2026. We paraphrase it, use none of its images, and credit its where-we-found-it finds as COD Central's own field reports. Game hint: the 3D printer's Ingredient Locations text, which COD Central, DMZ Map and DMZ Codex each transcribed and which we cross-checked on 26 October. Creator runs, credited as in our 3D printer farming guide: Schlayer, "RAREST Keys + Weapon Blueprint Farm in DMZ!" (YouTube, 23 October 2026); Eakr, "How To Quickly Find COMM MODULES & ALL PC PARTS in MW4 DMZ!" (YouTube, 22 October 2026); TheSpazo, "this DELETES the *TANK* in SOLO DMZ" (YouTube, DJJit0f1p3U). Rarity and value were cross-checked against dmzhub.gg item pages, and nothing was copied from its database. All prose and every image here is our own, and we have not played any of it.
Watch Schlayer's video on YouTube → Watch Eakr's video on YouTube → Watch TheSpazo's video on YouTube →
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Wing Mait is an independent project, not affiliated with or endorsed by Activision. Wing Mait for MW4 DMZ is in development and has not been released.