Unlocking weapons in Modern Warfare 4 DMZ is not the same as in multiplayer. You do not level up to earn a gun; instead you find and extract that weapon's Weapon Manual in Hajin, after which you can buy the base weapon at the Gunsmith with DMZ Cash any time you deploy. There are 29 manuals, one per base weapon.
This guide explains the manual system from first principles: how to find a manual, why extraction is the whole point, what the 5,000-cash bonus means, and how a looted gun differs from a weapon you have properly unlocked. If you only read one thing, read this: a manual only counts once you exfil with it.
The difference between looting a gun and unlocking it
In DMZ there are two very different things that both look like getting a weapon. The first is looting a gun off a body, out of a container or from a boss. That gives you one physical copy of that weapon in your Stash, which you can build up later at the Gunsmith, but if you lose it on a run it is gone. The second is unlocking a weapon by extracting its Weapon Manual, which lets you buy that base weapon as many times as you want, forever.
That distinction is the heart of the mode's weapon economy. Loot gets you a gun today; a manual gets you that gun permanently. For the looted side of this, read our contraband vs insured weapons guide.
Step one: find a Weapon Manual
Weapon Manuals are physical items you find in the field, scattered across Hajin in containers, locked rooms and on certain enemies. Examples include manuals for the M4, the Kastov 762 and various launchers. Like other loot, manuals tend to appear in locations that suit them, and keys can open the rooms where better items, including manuals, are stored.
Because there are 29 of them, collecting the full set is a progression project in itself. Many players keep a running list of which manuals they still need and plan runs around the ones they are missing.
Step two: extract it
Finding a manual does nothing on its own. It has to be carried through a successful exfil. If you die or fail to extract, the manual is lost along with the rest of your unsecured backpack, and the unlock does not happen. This is why manuals are best grabbed and then extracted promptly rather than carried while you push deeper into a hot zone.
When you do extract a manual, two things happen: the weapon becomes permanently purchasable at the Gunsmith, and you receive 5,000 DMZ Cash for the extraction. That cash bonus makes manual hunting one of the best early-game income methods, which we cover in the cash farm guide.
| Aspect | Looted gun | Unlocked via manual |
|---|---|---|
| How you get it | Loot it in the field | Extract its Weapon Manual |
| How many copies | One physical copy | Buy as many as you like |
| If you lose it | Gone | Just rebuy the base weapon |
| Cash bonus | None | 5,000 per manual extracted |
| Attachment ceiling | Up to 8 looted slots | Gunsmith slots you pay for |
Step three: buy and build at the Gunsmith
Once a weapon is unlocked and the Gunsmith is open at DMZ Player Level 10, you can buy the base gun with DMZ Cash whenever you deploy. The base cost is low, for example around 5,000 cash for an M4, and then you pay per attachment slot to build it up. That means a manual does not hand you a finished weapon; it hands you the right to keep buying and building one. The full build process is in our MW4 DMZ Gunsmith guide.
If you want a shortcut on the collection itself, the store offers a weapon manuals service so you can skip straight to having guns unlocked and spend your playtime on builds and runs instead of hunting all 29.
Which manuals to prioritise
With 29 manuals, order matters. Most players go for a versatile assault rifle first, since an AR like the M4 handles the widest range of situations, then a close-range SMG for buildings and a marksman or sniper for open ground. Launchers are worth unlocking once you start taking on vehicles and bosses. There is no single correct order, but unlocking one dependable gun in each role early beats collecting a dozen manuals for weapons you never use.
Because each manual also pays 5,000 cash, there is no wasted effort in collecting ones you will not immediately build; the extraction itself funds the guns you do want. Keep a note of what you have left and clear them opportunistically on other runs.
Keeping track of your collection
With 29 manuals to find, the single habit that speeds up the grind is tracking what you still need. The game records which weapons you have unlocked, so before a run it is worth checking your Gunsmith to see which base weapons remain locked, then planning your route around the buildings and locked rooms where those manuals are most likely to appear. Grabbing keys on the way turns random looting into targeted looting, since keys open the rooms that tend to hold higher-tier items, manuals included.
It also pays to be realistic about timing. The Gunsmith does not open until DMZ Player Level 10, so manuals you extract before then sit as progress you cannot immediately use, though the 5,000 cash from each extraction still lands. That is fine; treat the early game as banking both cash and future unlocks. Once the Gunsmith is open, prioritise building the weapons you have unlocked so the collection turns into usable guns rather than a checklist. If you ever lose a built weapon on a run, the manual means you simply rebuy the base and re-add the attachment slots, so no unlock is ever truly gone, only the specific copy you were carrying.
Where to look for manuals
Manuals are field loot, so they follow the same logic as everything else in Hajin: they turn up more often in locations that fit them and in the secured spaces that hold higher-tier items. That means you will find more manuals by opening locked rooms and lockers than by clearing open streets. Keys are the lever here. With 42 keys in the mode opening gun-store lockers, DRC lockers, the Police Station and more, carrying the right key lets you go straight to a room likely to hold strong loot, manuals among it, instead of hoping a random container pays off. Cheaper keys even sell in 2-packs, so stocking up on them is an affordable way to raise your odds.
Bosses are the other reliable source. Lieutenants carry customised weapons and drop keys to their own named rooms, and clearing those rooms is one of the better ways to find specific gear. The catch, as always, is that these are contested spaces, so a manual grabbed from a Lieutenant's room is only yours once you survive the fight and extract. Because the mode records which weapons you have unlocked, the most efficient approach is to check your Gunsmith before a run, note the base weapons still locked, and build a route that passes the kinds of rooms where their manuals are most likely to sit. That turns a blind grind into a focused hunt, and it is the single biggest time-saver when you are trying to complete all 29.
Frequently Asked Questions
How do you unlock weapons in MW4 DMZ?
Find a weapon's Weapon Manual in Hajin and extract it. That weapon is then permanently buyable at the Gunsmith with DMZ Cash, and you also earn 5,000 cash for the extraction.
How many weapon manuals are there?
There are 29 Weapon Manuals, one per base weapon, including guns like the M4 and Kastov 762 and various launchers.
What happens if I lose a manual before extracting?
The unlock does not happen and the manual is lost with your unsecured backpack. A manual only counts once you successfully exfil with it, so extract promptly.
Can I use a looted gun without the manual?
Yes, but only that one copy. A looted weapon is a single gun in your Stash that is gone if you lose it. The manual is what lets you rebuy the weapon any time.
Do I need the Gunsmith to use a manual?
You need the Gunsmith, which unlocks at DMZ Player Level 10, to buy and build unlocked weapons. You can extract manuals before then; the weapons just wait until the Gunsmith is open.
Which weapon should I unlock first?
Most players start with a versatile assault rifle, then add an SMG for close range and a marksman or sniper for distance. Launchers become useful once you fight vehicles and bosses.