MW4 DMZ: How to Print a DDOS Field Upgrade for Dead Battery (Detonators Location)

Dead Battery is the first order on page 2 of the Underground chapter in Modern Warfare 4’s DMZ. It has two tasks. You print a DDOS Field Upgrade at your base, then use it to knock out three enemy vehicles or drones. Printing it is easy. Getting the ingredients home is the hard part.

Quick answer: Exfil with 30 Electronics and 3 Detonators, open the 3D Printer at base, print the DDOS from the Field Upgrades category, then equip it in your Field Upgrade slot.

Dead Battery tasks and DDOS recipe cost

The order appears on the base briefing board as DMZ ORDERS P13, Chapter 04: Underground 2/2. Death From Above and Operation: Shopping Hacks sit on the same page. Dead Battery’s two tasks read:

Print a DDOS Field Upgrade
Disable 3 Enemy Vehicles or Drones With the DDOS Field Upgrade (0/3)

The DDOS is printed at the 3D Printer, which is at your base between deployments. It is listed under the Field Upgrades category. That category opens with the 3D Printer: Field Upgrades station upgrade at DMZ level 12, so you need to reach that level before the recipe can be used.

Ingredient	Amount	Rarity
Electronics	30	Uncommon
Detonators	3	Uncommon

The printer shows how much of each ingredient is already in your base inventory. A count like 0/3 Detonators tells you exactly what to bring home from your next run. The finished DDOS is a Rare Field Upgrade valued at $300. Its in-game description says it “activates a device that deactivates electronics, and disrupts enemy sensors in the immediate area for a short time.”

3D Printer Menu and DDOS Recipe — The DDOS recipe in the 3D Printer shows your current Electronics and Detonators against the amount required. Shown at 00:23 in GuidingLight’s video. Image: Infinity Ward

Detonators location in MW4 DMZ

Detonators are the ingredient that holds most players up. Open the Ingredient Locations sub-menu from the recipe and the game gives you a one-line hint. Detonators are “found in military and industrial areas,” so aim your drop at those zones.

Ingredient Location Details — Ingredient Locations points you to military and industrial areas for Detonators. Shown at 00:47 in GuidingLight’s video. Image: Infinity Ward

Search loot containers and duffel bags in those areas. Side objectives are also a good source, because finishing one drops a reward care package. Completing “Destroy the Trucks Carrying WMDs” near Cheongun Outskirts spawned a care package labelled CARE PACKAGE: LOOT CONTAINER, and it held Detonators.

Care Package Event for Detonators — Side objective care packages can contain Detonators, which makes them a reliable shortcut for this recipe. Shown at 01:44 in GuidingLight’s video. Image: Infinity Ward

Before you head for exfil, open your backpack and make sure it shows all three Detonators. Leaving with two means another full run.

Electronics location for the DDOS recipe

Electronics are much easier to find. Ordinary residential and commercial buildings are full of them. Clearing houses in Cheongun Outskirts works well. Check every duffel bag, shelf and container inside, and you will pass 30 quickly, especially with a vehicle to hop between buildings.

Driving and Looting Buildings — Duffel bags inside houses give you crafting materials, which makes residential areas a fast way to collect Electronics. Shown at 01:27 in GuidingLight’s video. Image: Infinity Ward

Any spare Electronics already in your base inventory count too. If the printer shows more than 30, you only need to bring Detonators.

How to print and equip the DDOS Field Upgrade

Make it out of the match carrying the Electronics and Detonators in your backpack; they enter your base inventory only after you escape alive. If you die during the match, you must start again.

Go to the 3D Printer at base and open the Field Upgrades category. Select the DDOS and check that both counts are full, 30/30 or higher for Electronics and 3/3 for Detonators.

Choose “Print to Stash.” The game confirms the print with a “Printed to Stash” message, and the ingredients are deducted from your inventory. This finishes the first Dead Battery task.

Printing DDOS at 3D Printer — The "Printed to Stash" confirmation tells you the DDOS has been crafted and sent to your stash. Shown at 02:18 in GuidingLight’s video. Image: Infinity Ward

Open the Stash/Loadout screen and find the DDOS among your items. Move it into the Field Upgrade slot of your active loadout. A printed upgrade sitting in the stash does nothing until you equip it.

Stash and Loadout Management — Equip the DDOS in your Field Upgrade slot from the Stash/Loadout screen before you deploy for the second task. Shown at 02:46 in GuidingLight’s video. Image: Infinity Ward

Disabling 3 enemy vehicles or drones with the DDOS

With the DDOS equipped, deploy and set it off close to enemy vehicles or drones. Its pulse shuts down electronics in the immediate area. The task counter tracks progress toward 3, and you can check it on the Dead Battery entry.

A DDOS is fully used up when you activate it. If one blast does not catch several targets, you will need to print more and take them into later matches. Bringing spare Detonators home on each run saves you a dedicated farming trip.

Both tasks are done once the order shows the print task complete and the counter reads 3/3. Dead Battery is then finished, and you can move on to the rest of the Underground page.