Skip to content
[8.3]. Mission 3 - G5 Building: Reconnaissance (2)
The Long Dark

[8.3]. Mission 3 - G5 Building: Reconnaissance (2)

Complete Mission 3, G5 Building: Reconnaissance in The Long Dark. Deactivate lasers, photograph conspirators, retrieve backup, and exit.

By ···10 min read·Multi-source verified
1 reading this guide  

Complete Mission 3, G5 Building: Reconnaissance in The Long Dark. Deactivate lasers, photograph conspirators, retrieve backup, and exit.

Walkthrough
  1. 1
    Deactivate laser grid systems:
    1. Face invisible guards; one carries a necessary card key. Wait for them to shoot to see their outlines, then kill them.
  2. 2
    After obtaining the key card, leave through the unlocked door.
  3. 3
    Kill the guard at the end of the hall.
  4. 4
    Activate the control panel to the right of the door and enter the door at the end of the hallway.
  5. 5
    Turn right to find a door within glass windows. Proceeding through this door activates lights and more invisible guards. Kill them and retrieve the card key from one.
  6. 6
    Enter the door within the glass case.
  7. 7
    Shoot the guard immediately upon entering.
  8. 8
    Walk past the stairs and grab the shield next to them.
  9. 9
    Go up the stairs and through the door at the top.
  10. 10
    Turn right at the door and proceed down a short hallway.
  11. 11
    Kill the two guards.
  12. 12
    Go to the Alarm located next to the first door on your right.
  13. 13
    Prevent a third guard from reaching the Alarm by killing him when he enters.
  14. 14
    De-activate four control panels in the area; they turn green when activated. This deactivates the lasers.
  • Photograph meeting conspirators:
    1. Head through the door next to the Alarm and kill the guard at the bottom of the stairs.
    2. Go right at the bottom of the stairs and down the corridor.
    3. In the next room, defeat the three guards.
    4. Walk to the large control panel and use 'B' to disable the damping field generator (optional, but helpful).
    5. Return to the room with the Alarm.
    6. Turn right and face the door. Shoot the guard on the other side through the glass.
    7. Go up the stairs at the other end of this room.
    8. At the top of the stairs, go right and crouch to get under the roof, following the piping to the area where you killed the first guard.
    9. Use the Camspy and guide it along the pipes into the next room. Avoid detection by guards to prevent mission failure. Completing this step fulfills the first objective.
  • Retrieve Dr. Caroll backup from safe:
    1. Proceed forward and drop down.
    2. Kill any guards in the vicinity. If the alarm was set off, turn it off.
    3. Go through the door to the left of the alarm, kill any guards near the stairs, and ascend the stairs.
    4. Turn right at the top of the stairs, eliminate any guards present, and enter the door in the green area on the right.
    5. Turn right inside this room and use the Door Decoder on the control panel next to the door.
    6. Wait for 1 minute to open the vault. Kill any guards that wander into the area during this time.
    7. Once the minute has passed, open the large blue vault in the back of the room and retrieve the Backup Disc. This completes Objective 2.
  • Exit G5 Building:
    1. Run out of the room and head straight towards an explosion.
    2. Go through the hole in the wall to complete the third objective and exit the mission.
    3. Note: If there is no explosion, go to the level where you placed the Mine in Chicago stealth, find the concrete door, and detonate it yourself.
  • Tips
    • Invisible guards can be identified by their outlines when they shoot.
    • The Camspy must not be seen by guards during the photograph objective.
    • A 1-minute waiting period is required to open the vault.
    • If the exit explosion does not occur, you must manually detonate a concrete door.

    100% Human-Written. AI Fact-Checked. Community Verified. Learn how AntMag verifies content