Signal Breaker Dynamic Op Walkthrough in MW4 DMZ: Bomb Parts and Radar Trucks
Three bomb parts, one workbench and three rooftop radar trucks stand between you and 6000 XP plus $10,000.
Three bomb parts, one workbench and three rooftop radar trucks stand between you and 6000 XP plus $10,000.
by AllThingsHow Staff
Image: Infinity Ward
Signal Breaker is a Dynamic Op in Call of Duty: Modern Warfare 4’s DMZ mode. You collect three bomb parts, build the bomb and then wire it to three radar trucks. Most of it happens in the low-threat Imjin Farmland. One part sits in a safe inside Compound Alpha, which is a high-threat area, so plan for at least one real fight.
Quick answer: Activate the phone in Imjin Farmland’s white tunnel greenhouse, collect three bomb parts, craft the bomb at an office workbench, then plant it on three rooftop radar trucks.
Signal Breaker locations and objectives
The op runs through four objectives in a fixed order: Proceed to the Target Area, Collect the Bomb Parts 0/3, Craft Bomb and Plant Bomb 0/3. Here is where each stop sits on the map.
Stop
Location
Threat
Interaction
Op phone
White tunnel greenhouse, Imjin Farmland
LOW
ACTIVATE
Bomb part 1
Hidden Cache by a wrecked tank in the woods
LOW
Open the cache
Bomb part 2
Two-storey house with walled courtyard, Imjin Farmland
LOW
Pick up
Bomb part 3
Upper-floor safe, Compound Alpha
HIGH
Open the safe
Workbench
Low white office building with blue roof, Imjin Farmland
LOW
CRAFT BOMB
Radar trucks (3)
Rooftops around Imjin Farmland
LOW
PLANT BOMB
The RADIATION COUNTDOWN doesn’t pause while you work through the op, so pick it up early in the deployment rather than near the end.
How to start Signal Breaker and collect the bomb parts
Travel to Imjin Farmland and enter the white polytunnel greenhouse beside the road. Inside, a shelf holds the Dynamic Op phone. Inspect it to display the SIGNAL BREAKER card, then select ACTIVATE.
24:18Signal Breaker phoneThe Signal Breaker phone on its shelf inside the Imjin Farmland greenhouse, ready to activate. Shown at 24:18 in Shirrako’s video. Image: Infinity Ward
Follow the Proceed to the Target Area marker out of the farmland and into the misty woods. A vehicle makes the trip quicker, and there is an armed Grizzly parked by the greenhouses. The objective completes when you reach a wrecked tank.
Beside the wrecked tank, locate a HIDDEN CACHE marked by a circular metal lid embedded in the dirt. Open it to collect the bomb part and any common loot inside.
A short walk away in Imjin Farmland, enter a two-storey house enclosed by a courtyard wall and collect the second part indoors. The objective counter updates to 2/3.
Travel to Compound Alpha, which displays THREAT: HIGH as you arrive. Climb the concrete wall and clear the soldiers out of the office building. The safe is on the upper floor.
Inside the safe are the third bomb part and valuables, including Regional Combat Notes, the W.M.D. MANIFEST, and Ballistic Flight Logs. The HUD shows STEP COMPLETE, then switches to CRAFT BOMB.
Compound Alpha also has its own side op, Clear the Military Compound. If you clear the whole site while you’re there, CLEAR THE MILITARY COMPOUND completes and pays 225 XP.
How to craft the bomb and plant it on the radar trucks
Return by vehicle to Imjin Farmland and follow the marker to a low office building with white walls and a blue roof. Inside, locate the workbench, where a laptop and bomb parts sit on the desk. Select CRAFT BOMB.
Locate the first radar vehicle. These targets are large trucks in green-and-brown camouflage, marked 레이더 and parked on rooftops around Imjin Farmland. Climb onto that roof by its ladder.
At the truck’s side, find the panel glowing green and select PLANT BOMB. Your operator enters a code on the bomb’s keypad and attaches it to the truck; the counter then reaches 1/3.
Do the same on the other two rooftop trucks until the counter reads 3/3. Expect resistance throughout. Soldiers guard the radar roofs, and more arrive by truck while you’re planting. In a squad, one player can cover from a nearby roof while the other plants the bomb.
Signal Breaker completion and rewards
The bombs go off as soon as the third one is set. The screen then shows OPERATION COMPLETE / SIGNAL BREAKER, and OPERATION COMPLETED appears on the HUD. You get +6000 XP and +10000 cash. The op also counts toward Dynamic Ops Completed under OBJECTIVES on the end-of-match rating screen.
