No Gods , No Masters No Gods , No Masters is an and final in " " if you choose to ignore the 3 other main factions ( NCR , Caesar ' s Legion , and Mr . House ) and go it alone , by using Yes Man to help you to fight for an independent New Vegas . Ensure that you have gone to the underground bunker and upgraded the Securitron Army prior to talking to Yes Man at the conclusion of . Detailed walkthrough . After telling Yes Man you ' re ready to go to the dam , you start this quest on the western end of the dam with a Securitron and up to two companions that you might have with you before you told Yes Man that you were ready to go to the dam . As you walk forward you will see the large turret to your right explode and you will see in front of you four or five NCR troops ducking behind sand bags while fighting the Legion . You can then sneak past them all , kill them all or kill just one side if the other is not hostile towards you . There are several legionaries coming from the eastern side of the dam and from the drainage towers to your left as you cross the dam . There are some NCR snipers on top of the dam towers to your right as you cross the dam . After crossing the dam , you will have to enter the last tower to your right , and use the elevator to descend to the Hoover Dam offices . After entering the offices you will encounter two NCR heavy trooper s armed with heavy incinerators burning four Legionaries cowering away from them . You can kill both the legionaries and the NCR troops , sneak past them , or convince the NCR troops with a Speech check of 75 during dialogue . Afterwards , install the override chip into the large terminal with several screens attached to it , at the end of the room . Yes Man will contact and inform you that you have two options : After choosing either option you will have to run through the halls , where more legionaries and NCR troops will be fighting each other . You can sneak past them all , kill them all or kill just one side if the other is not hostile towards you . To get from the control room to the manual override switch , turn and follow the hall to your left after exiting the control room , then turn to your right down the next hall and go to the end of the hall and turn to your right and open the door to a balcony overlooking one of the dam ' s eastern plants . Turn to your right and flip the switch , then go straight down the hall where you came from and turn through the open doorway to your left , and use the elevator to ascend to a room inside one of the eastern towers . Inside the room is a staircase to your right after you come out of the elevator . The room upstairs from the elevator are some toilets , sinks , and a first aid box hanging on the wall . You can drink from the toilets and sinks and use the medical supplies from the first aid box to heal your wounds , before you continue to cross the dam . Exit through the door to the left of the elevator if the elevator is behind you . As you cross to the eastern end of the dam you will see fires burning at Fortification Hill , if you decided to activate the Securitron army . Several more legionaries will be coming from the power output towers to your left and from the eastern end of the dam and they may try to take cover behind the sand bags , there are also some NCR snipers on top of the towers , including the tower you came out of . If you completed the quest Volare ! and helped the Boomers , they will fly the restored B - 29 over the dam and bomb a number of the legion . If you completed the quest For Auld Lang Syne and told the Enclave Remnants to assist the NCR against the Legion , they will fight by your side , if the NCR is not hostile towards you , but if the NCR is hostile towards you then Cannibal Johnson will attack you making it very likely that you have to kill them all , except Daisy Whitman who flies away inside the Enclave vertibird . If you decided to activate the Securitron army , then you will have several Securitrons to assist you in the battle . After crossing to the eastern end of the dam , you will have to cross the bridge to your right and follow the path to the gate leading to the legate ' s camp . The path has more legionaires coming from the legate ' s camp to kill or sneak past . Follow the path down the hill from the gate and enter the legate ' s camp to your right . Inside the legate camp are some praetorian guards and some other legionaries to kill or sneak past . Go up the hill to meet Lanius and either kill him and his legionaries in a duel , or convince him to surrender with numerous Speech checks of 55 , 65 , 75 , 85 and 100 . The Barter check will ultimately result in combat . After making either decision , go back to the gate at the camp entrance and you will be confronted by General Oliver , six NCR Veteran Rangers , and the choice to kill them , convince the NCR to leave , or to throw Oliver off the Hoover Dam .