Junction City ( mission ) Junction City is the twelfth mission in " " . Walkthrough . The Warrior ' s insertion point is just outside Junction City , which will be non - hostile . The objective is to collect all the parts of a robot that approached the town after being damaged and was subsequently destroyed by the townsfolk . Each part is in a different location , all but one of them is held by the townsfolk . Talking to Anna Guarana , the Mayor ' s assistant inside the Town Hall will let the player character know where each part is located , and what she thinks of your possible new mechanic . Robot arm . The robot arm is held by Juan , the town ' s merchant . He is located at the general store ( marked 3 on the map ) . You can get the part by either buying it or stealing it from him . Robot head and torso . John Levis , the Mayor , is located in the Town Hall . He tells you he is in possession of the robot head and will give it to you in exchange for killing all of the Reavers threatening his town . All of the reavers are in or around a building at the top right edge of the map . Proceed through the top entrance of the town and head towards the Reaver hideout . Be cautious as you approach as the Reavers , though much less resistant to damage compared to the super mutant s , have much more advanced and devastating weaponry such as the Vindicator minigun , Sunbeam laser rifle , and P94 plasma rifle . A majority of them will be around the building ' s perimeter behind various walls , fences , and boulders . In addition to that , there are several Reavers on the balcony of the building with sniper rifle s and M79 grenade launcher s sniping at your squad . Use the cover to your advantage and only pop up to either shoot or run to the next cover . Once you get closer to the building you will be able to either shoot them from the balcony or get beneath it to avoid their fire . You can also use the windows to hit the Reavers waiting inside . There is the body of a dead civilian at the foot of the staircase to the house , check it and take the house key . As you enter the building , kill any Reavers you may have missed and move to the door in the center of the room . This door can be unlocked with the house key , but it is also trapped . The only way through is to either disarm the trap or to just take the damage . In the next room is a few more Reavers and a workbench containing the robot torso . Now proceed up the staircase . On the second floor there will be two Reavers waiting to ambush you on the right side hall and a third Reaver sleeping on the floor of the bedroom ( as well as the Reavers on the balcony if they are still alive ) . Once they are all eliminated , return to the Mayor for your reward , the robot head . Robot actuator . Inside The Pit , the town ' s bar , you can find Angry Rick . At first he will simply curse at you for asking for his bar ' s biggest attraction , the robot actuator , but after repeatedly talking to him , you will be able to intimidate him into handing over the part . Robot part . Chuck , near the entrance to the town , is selling a robot part , telling you it is from the destroyed robot , but this " part " is in fact a fake he made himself out of various items such as a toaster , wires , and a sex toy in order to make some quick cash . Optional Objective . Since Cooter , the Brotherhood ' s head mechanic , died after triggering a booby trap on a captured vehicle , you have been asked to replace him with the mechanic in Junction City , Casey Barrett . She can be found with her father at the South Eastern corner of the town ( marked 1 on the map ) . Her father , Stephen Barrett was injured in the first Reaver attack and is lying on the table . Casey says she can ' t leave him in this condition so in order to recruit her , you must heal him . If you have a medic on your team you can use any kit on him , but if you do not , using stimpak s or healing powder on him will work . Once he is healed Casey says she will gather her things and leave to meet you at the base .