In Horizon Forbidden West, Death’s Door is a main quest that starts right after you complete the previous main quest, Embassy. The quest begins with a long, beautiful hike, run, or hike to the coordinates Aloy discovered in the previous mission. The journey continues through the rubble at coordinates, along a path left by Sylens and Orb, and eventually leads you to a ruin, where you examine the Orb for traces of HADES.
After killing HADES and talking to Sylens, you’ll craft an Igniter to take you through a broken door into Latopolis. When you get to the north side of the facility, you’ll almost immediately be blocked by a bunker door that requires an entrance code. Enter the room opposite the bunker door and turn left. Hold R3 to use your Spotlight to scan the Emergency data point. Look at it in your Notebook and you’ll see that Travis is related to Sovereign 7482. So the code for the Door of Death bunker in Horizon Forbidden West is 7482.
Enter 7 – 4 – 8 – 2 into the control panel next to the bunker door to unlock it, then go through to continue exploring the facility and try to find your way to the gen-locked trapdoor inside.
https://www.gamepur.com/guides/what-is-the-code-for-the-deaths-door-bunker-in-horizon-forbidden-west What is the code for the Door of Death bunker in Horizon Forbidden West?