Maintenance level The maintenance level and the connected waste disposal are locations onboard Mothership " Zeta " . Layout . Maintenance level . If you use the teleportation matrix , next to the door to robot assembly , to the maintenance level during Among the Stars , you will find Sally attempting to fix the control panel on a Zeta trash can . She explains that she is not really lost and you both might find ' something neat ' . Before long though , it starts moving , and it ' s a long way down . . . The trash can stops at several levels of the Zeta Mothership , a small hatch on your right ( when facing Sally ) opening for you to look and shoot out : The elevator will stop on the last level and involve a shoot - out with the three aliens . Sally will then climb out of the compactor , explaining that she will figure something out to get it moving again . The trash compactor will then suddenly plummet . A first person view of the player will show you scrabbling for grip inside the compactor , ultimately failing , and landing in a detritus ridden area with a newly crippled leg ( which can be healed later with a healing archway , if modified , in the waste disposal ) . Sally then re - appears . You can tell her you wish to go back the way you came but she will explain that is impossible unless " you are Captain Cosmos " . Sally runs off after deciding to split up , explaining that she will " try to find a way to get you out of there . " Waste disposal . Inside you will find a maze of trash compactors . One situated ahead , can be turned on and off and you will find it proves quite adept at destroying anything you place in its path . To the lower east of this room is a grid of trash compactors , examine the rhythm or run through to two safes ( one hard , one very easy ) containing caps , ammunition and chems , and a first aid box . Just watch where you walk , and head to the exit to this room in the lower west corner . Another maze of tubes and trash in the next room and Sally ' s voice emanates . In here there is a first aid box and a safe . If you didn ' t heal yourself of the cripple earlier , there is a healing archway in this tunnel . Exit the door to find a support drone clearing garbage . Above the drone , there are two aliens on the roof who will ambush you from your back when you enter a U - shaped walkway in the outer room . After defeating them , you can also find a military footlocker , which contains the unique item General Chase ' s overcoat , at a corner near the beginning of the walkway ( map location A ) . At the end of the walkway , there is a door . When you pass it , two aliens will run from the tunnel ( where the healing archway is ) , one of whom wields an inertia suppression field . You will eventually come to a room with a guardian drone . You can kill it for its drone cannon or push it onto the trash compactor . Either way Sally opens the next doorway for you . If you turn off the compactor and proceed , the door behind you will be sealed and thus there is no turning back . The next room will contain 2 - 3 aliens who drop down from a rampway above , unless you ' re adequately stealthed . Dispatch these somehow using the trash compactor , or just kill them , and Sally will have opened doorway 2 . The next few rooms will be closed off similarly ( all of these upper areas can be accessed by stacking the small boxes beside a doorway to make a set of stairs and leaping from the top of the doorway arch before you slide off the other side ) . You must wait a few seconds , possibly dispatching the aliens if spotted . Once through , Sally reports the radio has gone quiet , and you are ambushed in the next room . Grab alien captive recorded log 19 in here and kill all aliens until the doorway opens . There are also containers in this room . Once through , travel through the next area and meet Sally . She tells you to check out the storage closet which contains a samurai ' s sword ( map location B ) and loads of first aid boxes . She then tells you to return to the core and ' . . never speak of this again . ' Appearances . Maintenance level and waste disposal appear only in the " Fallout 3 " add - on " Mothership Zeta " .