X-13: Attack of the Infiltrator!

X-13: Attack of the Infiltrator! is a side quest in the Fallout: New Vegas add-on Old World Blues. After completing this quest, the player is awarded with the "Cardiac Arrest!" trophy/achievement.

Quick walkthrough

 * 1) Enter the X-13 testing facility.
 * 2) Find all 3 parts to the Stealth suit Mk II.
 * 3) Activate the basic infiltration test to begin initializing the stealth suit.
 * 4) Get the X-13 document from the Administrator's wall safe.
 * 5) (optional) Go back to the test terminal and start the Advanced test.
 * 6) Avoid the lasers and retrieve the X-13 document from the Administrator's wall safe.
 * 7) (optional) Go back to the test terminal and start the Expert test.
 * 8) Avoid the lasers and perimeter mines and retrieve the X-13 document from the Administrator's wall safe.
 * 9) (optional) Go to the test terminal and start the Robot Compliance test.
 * 10) Avoid the lasers and perimeter mines and deactivate all 3 Robobrains.