The 13th Floor - Secret #3
In the last section, we avoided the remaining security guards and finished the level in stealth to unlock the "Mission Impossible" achievement/trophy. Now we'll reload our backup save and go after the third secret and "The Trap is Set." Go ahead and shoot the orange-suited worker (1) (45/62) this time. Unfortunately, you must do this to get the secret.
NOTE: Now that you've blown your cover, this and the remaining kills actually count.
Cutscene: Zip criticizes Lara as two more guards enter the hallway beyond the LASER-TESTING LAB.
The door shown in the cutscene is at the far end of the hallway, directly opposite the door you opened with the IRIS LAB ACCESS disk.
Set the HK to burst mode. Move out into the hallway, but don't round the corner yet, or the gun turret will lock on. (The turret is activated even if you kill the first guard before killing the worker.) Shoot that first guard (2) (46/62)...
...then the 2 new guards (3-4) (47-48/62), as they approach.
When you've taken care of them, sprint past the turret and around the next corner.
Follow the hallway to the end. Turn left, go through the door that opened in the cutscene...
...and kill another guard (5) (49/62) in the passageway ahead...
...and one final guard (6) (50/62) a little farther along.
Continue to a T-intersection with a laser trap. Crawl in under the moving laser array, turn left...
...and crawl partway up the ramp. When the lasers pass behind Lara...
...stand and run forward to the golden rose (25) (198/239) (SECRET #3, 30/36). Lara is safe here.
When you have the rose, turn around to face the laser array. When it moves away, run after it...
...and duck at the low point in the floor. Wait for the lasers to pass in the other direction.
Then stand and run up the ramp into the stairwell ahead. The door closes behind you, locking you out of the secret area.
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