Modern Warfare 4 Pacifist Trophy: Assassins Stealth Route

Pacifist is a Gold trophy in the eighth Modern Warfare 4 campaign mission, Assassins. The objective is to finish the level after killing only one enemy. That single kill happens during a scripted encounter at the boardroom doors, so you must leave every other hostile alive.

This route works on Recruit, making it the sensible choice if you only want the achievement. Kills performed by AI allies do not count against your own total.

1. Pacifist Requirements and Keypad Codes

Requirement	Detail
Mission	Assassins (Mission 8)
Allowed player kills	One
Difficulty	Any; Recruit is easier
Trophy	Pacifist (Gold / 50 Gamerscore)
Library exit	5523
Kitchen exit	7632
Bunker hatch	9103

Do not attempt Revenge in the same run. The Revenge trophy requires killing enemies after Shin dies, while Pacifist limits you to the single mandatory kill.

Promotional image via 4Gamer.

2. Follow Your Allies Through the Palace

At the start, stay behind Shin and Jang and let the accompanying soldiers handle the fighting. When you reach the hallway with floral displays, go prone underneath the table on the right and wait for Ko to arrive.

Keep following the group through the exhibit hall. When the route takes you outside, climb through the window and move along the exterior ledge. Wait near the third window until the guard inside turns away, then move past without attacking.

At the glass security room, allow your allies to clear the area. Pick up the earpiece and knife once it is safe to continue, but do not use the knife on ordinary guards.

3. Make Your One Kill at the Boardroom

The mandatory kill takes place at the boardroom double doors. When the ambush starts, take down only the guard on the left using the prompted melee takedown. Let your allies handle the other enemies.

From this point onward, any additional player kill invalidates the challenge. If you accidentally kill someone, reload the checkpoint immediately rather than continuing.

4. Sneak Through the Library — Code 5523

After the boardroom, enter the library and stick to the left side. Go prone to pass through the low opening near the bookshelves. Use the staircase as cover and wait for the guards to walk downstairs.

Once their route is clear, go up to the service door and enter 5523. Do not sprint or engage the patrols. You only need to reach the next section alive.

5. Cross the Kitchen — Code 7632

Follow the red-lit corridor down toward the kitchen. You can collect glass bottles to distract enemies without hurting them. Stay crouched behind the counters and move through the low gaps between cabinets.

Use the counters to block sightlines and continue to the far-side pantry. The exit keypad takes 7632. Enter the code and step outside into the garden.

6. Reach the Garden Bunker — Code 9103

At the garden entrance, wait for the armored patrol to turn away. Move along the hedges rather than crossing the open paths.

When you reach the water, dive under the surface and swim beneath the gazebo to avoid the sniper's line of sight. Surface on the far side, then move through the flowerbeds around the left side of the statue.

The bunker hatch is behind the statue's base. Enter 9103, go down the ladder and continue straight through the tunnel to the secure doors.

7. When Pacifist Unlocks and Common Mistakes

The achievement should appear when you reach the secure room at the far end of the bunker. If it does not, the likely cause is a second kill during the run.

• Avoid firing your weapon at guards, even when spotted.
• Do not use throwing knives or lethal grenades after the boardroom.
• Distract or evade patrols rather than eliminating them.
• If caught, reload the checkpoint before you accidentally kill someone.
• Let your allies do their scripted takedowns and keep your own total to one.

For a shorter reference to every keypad, use All MW4 Safe and Door Codes.