Find a way into the Sierra Army Base Find a way into the Sierra Army Base is a " Fallout 2 " side quest . Walkthrough . Orville Wright wants an edge on the other New Reno families ; is his edge edgier ? It better be , because they all think they have edges too . And for the most part , their edge is you . He tells you of an abandoned military base . This is not , however , the only way to get the Sierra Army Depot location on your world map . If you are unable to receive the quest from Orville Wright the location can be found by digging up a grave on the northwest side of Golgotha . Your character must have a perception of 7 or more when you dig in order to find the location . Even if you have killed every Salvatore gang member in the bar , Orville Wright will tell you that there are other Salvatore Made Men and Enforcers outside of New Reno and they are a threat to the Wrights and still wants the extra firepower . As you arrive at the Sierra Army Depot , note the bodies lying where they fell . Join them or take out the automated turrets . Depending on your skill level , you may not be able to target them while completely outside their range , even with a sniper rifle , but with such a weapon , you ' ll most likely have a much better chance of hitting them at far range than they do of hitting you . You can easily disable the Auto - cannon ( Fallout 2 ) by targeting " the gun servo " , a critical hit can cripple the turret gun , making it harmless , so you can get closer and destroy it . There is yet another way to get in , however . If you look at the bodies , note how one of them is slightly farther than the rest . Move in a diagonal from the right of the guard structure to the grouping of trees to the left of the center turret ; you ' ll make it through without triggering combat . Of course , having a high sneak skill will work too . Then , you could ignore them or take them out . . . A third option - with a sniper rifle , enter and exit combat while moving around at a safe distance from one of the turrets ( If they ' re outlined in yellow , they can ' t hit you ; if they ' re outlined in red , you can hit them and they can hit you ) . Eventually you ' ll find a spot where you can shoot the turret with decent accuracy , then move one step away and it won ' t be able to hit you . ( Behind the trees for the one in the courtyard , on the opposite side of the guard shack for the far right one , etc . ) There is loot on the ground as well as on the bodies , including a sniper rifle ( near the opened fence , south - west ) if you don ' t already have one . To the northwest there ' s a bunker with three traps outside , a trap on the door , and a trap on one of the ammunition crates inside , the bigger crate has a howitzer shell . Use the howitzer shell on the howitzer in the building to the right ( which has three mines in front of the door , one in the gap by the truck , and one near the barrels and tires ) , creating an access to the depot . Anything by the Depot entrance doors at this time will take damage . Once you ' re on the inside you can report back to Orville Wright . However , even if you don ' t the quest is crossed off in the PipBoy , so you just need to visit Orville for your reward . Should you enter the fenced - in area in the northeast corner you ' ll take electrical damage . In a small room at the bottom of a manhole is a switch which puts the base on backup power ( 50 % normal power ) . Consider before using it that this has the effect of reducing the illumination in the Depot , and turns the yellow impassable forcefields in the base into red ones which damage anything passing through them . Alternatively , as with all yellow forcefields , you can use Repair to pass them safely . Entering Sierra Army Depot . Level 1 . After entering the base there is a password note [ TCHAIKOVSKY ] in the first desk on the left . Typing it in the computer terminal disables Force Fields in Level 1 . In the locked room located to the left of the entrance you can find " Sierra Depot Evac . Notice . " . In the lab located to the right of the entrance you can find bio med gel ( needed for quest ) on the ground and in the lockers : yellow memory module , Dixon ' s eye ( use it to open elevator ) , medical holodisk . Level 2 . Robots will not attack if the alarm is not triggered ( don ' t fail too many times to deactivate force fields ) . You can get 200 XP for disabling the repair bay computer , on the left side of the level . There is a cookie in the room to the right of the laser beam . Eating the cookie increases your maximum Action Points by 1 for 15 minutes . Level 3 . Again , robots will not attack if the alarm is not triggered . Triggering the alarm causes extra robots to appear from their previously hidden location inside nearby walls . The computer on this level is an AI known as Skynet . Skynet has a strong desire to leave the base and explore . To facilitate this you may reactivate a robobrain by retrieving a brain from the medical storage facility on level 4 . After activating the Robobrain , you can have it join your party , its stats being mainly affected by the brain you were able to retrieve . It ' s often worth coming back to the base to complete this quest at a later time . The room with the incomplete Robobrain also contains another jar of Bio med gel . Level 4 . Again , robots will not attack if the alarm is not triggered . On this level you can retrieve a brain to host Skynet by using a computer on a room to the north - west , the one with a window showing the cryogenic containers . The better your science and medical skills , the better the brain you can retrieve . There are 4 brains , with the chimpanzee brain being the worst and most useless . While using the computer to retrieve a brain , you can also retrieve and reanimate a cadaver of a soldier and have a funny conversation . You can also use the organs extractor on the room to the left , which has another computer , using this computer while a companion is in the organs extractor you can extract his / her / it ' s brain for use in Skynet . Behind the scenes . The password [ TCHAIKOVSKY ] is the surname of Russian composer Pyotr Ilyich Tchaikovsky .