Step 1. Open your folder and go to section 5. Buy the Smoke Goggles then click "Go There".
Step 2. Enter the dark room.
Step 3. Walk to the computer solve the puzzle.
Congratulations! "Herbert Security Clearance 5" pin has been added to your inventory.
You've completed Chapter 5 of Operation: Blackout. The next missions will be available on:
Chapter 6 will be released on November 24.