MW4 · Campaign
Entrenched
Fight through frozen trench lines and into a nuclear power plant to stop it from melting down.
- Location
- Nuclear power plant, Hajin City, South Korea
- Playing as
- Pvt. Park Hyun-Jun
- Type
- Combat
Walkthrough
12 steps across 5 objectives
- Reach the end of the trench
Move up the snowy bank with your squad and drop into the trenches.
- Reach the end of the trench
Work along the trench, checking corners, the bunker and the ground above for enemies. Mash the prompt when a soldier jumps you with a knife.
Want Trench Broom? Pick up a shotgun and get your kills here, before the Target Building is secured.
- Reach the end of the trench
Clear the soldiers outside the building with the radio tower and go in through the hole blown in its wall.
- Reach the end of the trench
Check the panel to learn the emergency cooling is down, then leave by the back door and get in the ACV.
- Reach the Reactor
Use the ACV's guns on enemies to the right and on the towers as you roll into the compound.
- Reach the Reactor
When the ACV is knocked out, carry on over the bridge on foot, watching for enemies around the electrical posts and coils.
- Regroup at entrance to the Reactor Building
Go through the door with the radiation warning, clear the enemies to the left and head up the stairs.
- Regroup at entrance to the Reactor Building
Try the console in the control room. The SCRAM button won't respond.
- Follow Jae to the pump release valves
Follow the team into the burning room and dive under the yellow pipe.
- Follow Jae to the pump release valves
Swim to the valve and turn it, coming up for air once on the way.
Keep an eye on your oxygen meter the whole time you're underwater.
- Return to Jae and Dunn
Surface, then swim back to where you dove in. After Jae and Dunn revive you, push the barrels over so you can climb toward the roof.
- Return to Jae and Dunn
Cross the collapsing platforms, help Jae up, and climb to the pickup point on the roof.
Achievements
Kill 15 enemies with a shotgun before you secure the Target Building, which you reach after clearing the trenches.
Rewards for finishing
- West Operator
Story recapSpoilers
Story
Lt. West sends the Marines to a nuclear power plant in Hajin that is on the verge of meltdown. To bring the plant’s emergency systems back, the squad first has to break through the trench lines and take a relay station south of the plant.
The emergency cooling turns out to be offline, so the team switches to a backup plan: flood the reactor cores to buy time for an evacuation. The SCRAM killswitch won’t respond, so Park has to swim through the flooded pump room and open the release valve by hand.
Park nearly drowns on the way back and is revived by Jae and Dunn. The three then climb through the failing building to the roof and get picked up.
Sources
- Game8: Entrenched walkthrough (2026-10-18)
- Game8: MW4 trophy and achievement list (2026-10-25)
- KeenGamer: MW4 campaign walkthrough, all 16 missions (2026-10-17)
- TheGamer: MW4 campaign missions and objectives (2026-10-25)
- U4N: MW4 campaign guide (2026-11-11)