Project X-13

 is a quest in the Fallout: New Vegas add-on Old World Blues.

Quick walkthrough

 * Enter the X-13 Research Facility.
 * Gather the parts for the Stealth suit Mk II.
 * Complete the basic stealth test in the testing area.
 * (Optional) Complete all the tests to upgrade the Stealth suit Mk II completly.

Detailed walkthrough

 * Each piece of the suit is in a separate lab, and will be sitting on a table in their separate rooms.
 * Once obtained, proceed to the testing area, and begin the test.
 * There is no one way to get through the test, but all you need to do is wait for the Robobrains to turn around, while they move on their permanent routes.
 * Once you retrieve the document in the safe, the test will end and the player can receive their prize in the reward safe next to the test initiating terminal.
 * At this point, the player can now continue to do the test, receiving upgrades for the stealth suit and rewards each time, or leave (NOTE: the player can return to do the test at any point).
 * There are three other tests, each of which increase in difficulty.
 * In addition, Doctor Mobius sends Robo-scorpions to attack you at the end of the basic test.
 * The Advanced Test introduces laser trip wires that the player can hack, making it emit a blue laser that will not end the test if walked through, the other choice is to disable it. Both require the player to pass a skill check every time they choose one of these options.
 * It is recommended that you either hack or disable all of the laser trip wires, if they plan to proceed on to the Expert Test. This does not need to be done during the test, as the emitters are there between tests. However, they can only be hacked.
 * The Expert Test now includes proximity mines that you must disable or avoid. But of the player defused all the laser trip wires before hand, the difficulty of this level resides only in finding the mines. Some mines can be found: by the left end of the desk in the first room, on the desk in the room with lockers, in between the ammo box and the desk in the middle cubicle, on a table with a coffee maker on it, and a couple other locations.
 * The last test is essentially the Expert Test, but the objective is to disable all the robots, instead of get the X-13 document. Do not kill the robots, for killing them will result in automatic failure and all robots will become hostile. To disable them, go up behind them and press the action button as if to pickpocket, this will bring up a menu, in which select disable.
 * Completing all the tests will result in several rewards such as magazines, a sneak skill book, and a fully upgraded Stealth suit Mk II.
 * A very easy method: (with 75 lockpicking or science) is to take the stairs up to the observation levels and simply jump down into the Admin office with the safe (bypassing all sensors and robots). This works even on the last test, if you act quickly enough in jumping down into the Admin office, you can open the safe before a nearby proximity mine goes off.