For Auld Lang Syne For Auld Lang Syne is a in " " . Detailed walkthrough . Initiating the quest . This quest is initiated by Arcade Gannon , when he realizes that his old friends from the now - defunct Enclave could make a difference in the second battle for Hoover Dam . The quest is triggered by having Arcade as a companion , gaining his trust , and having progressed to one of the main storyline triggers ( even if he wasn ' t recruited at the time it happened ) . If the player character is following the main quest line for an independent New Vegas ( with Yes Man ) , the quest will be offered even if the player character has not gained Arcade ' s trust . If the player character is following the Caesar ' s Legion quests , equipping a suit of NCR armor will allow Arcade to be recruited despite high reputation with Caesar . Storyline triggers . The specific point in the story that will trigger the quest varies based on whether the player character has gained Arcade ' s approval ( see the section below ) and which main quest line the player character has moved forward with . If Arcade approves of the player character ( at least two " trust " points gained via the methods below ) , he will offer the For Auld Lang Syne quest if one or more of the following conditions are met ( regardless of having Arcade recruited at the time they happened ) : Note : Arcade will not offer this quest in response to any Caesar ' s Legion quest , though as it is possible to work on multiple main quests simultaneously , it is possible to trigger the quest while still doing work for Caesar . To do this , achieve an ' accepted ' status from Caesar ' s Legion ( and the NCR , if you want to prevent them from becoming an immediate enemy , but achieving a favorable reputation with Caesar ' s Legion is much harder ) and install Yes Man . Both Don ' t Tread on the Bear ! and Beware the Wrath of Caesar ! will activate , but neither will shun you . Note that if you travel far enough along the main quest lines to offer the Boomers ' help to either side , the two respective warning quests will activate , and installing Yes Man will cause you to become vilified . To avoid all repercussions , from the NCR , this means finishing the quests Render Unto Caesar through Part 2 ( Kill Mr . House then report back to Caesar before installing Yes Man ) , The Finger of Suspicion , killing Benny in the arena , and defeating all of the competitors in the arena ( all give Legion fame ) . If the player character convinces the Remnants to fight for Caesar , however , or travels to the Legate ' s Camp to start the assault on Hoover Dam , Arcade will quit . Even when approaching the Remnants bunker , he will not activate the quest . Gaining Arcade ' s approval . Arcade keeps a running tally of trust " points " the player character has earned by doing things he likes . To get him to offer this quest early ( or at all , if the player character is supporting the NCR or Mr . House ) , the player character must earn somewhere around 5 points either by going places that trigger positive memories of the Enclave , flattering him , doing smart things ( passing Intelligence checks ) , or doing things that are good for the Followers of the Apocalypse . Not every place or event that Arcade comments on represents an improvement of his approval rating of the player character . Arcade also has a running tally of " dislike " points , but they don ' t figure into this quest . They are only used to trigger a warning about the player character ' s behavior , and eventually cause Arcade to leave the player character permanently . See Arcade ' s page for more about " dislike " triggers . The following is a comprehensive list of events that earn trust " points " while traveling with Arcade as a companion . In certain situations , you earn different amounts of points depending on your dialogue response : Recruiting the Remnants . When the quest triggers , Arcade will approach the player character and ask if they can spare a moment to talk . Arcade tells the player character that he ' d like them to help him convince some of his old Enclave buddies to help the NCR fend off Caesar ' s Legion at Hoover Dam . If the player character agrees , the quest begins . The player character must recruit five old members of the Enclave , known as the remnants , to come to a meeting to discuss the battle at Hoover Dam . If any of the five is already dead , the quest cannot be completed , and will be failed . Each of them has a conversation tree and some will raise objections , but all can be convinced to come . Each of them will give the player character a single word of the five - word pass phrase that opens the Remnants bunker , where the meeting will be held . The five Enclave remnants are : Important note : After asking each of the Remnant members to join , the player character should wait for Arcade to approach the player character and make a comment about each one in order to set the quest flags properly . For each of the five recruits the player character can give one of two responses : a response that talks about how people can ' t ( or shouldn ' t ) shake their past , or a response that suggest that people should let go of the past , which helps Arcade make a decision later in the quest . If most of the responses suggest that people should let go of the past and forge a new future , he will be inclined to stay with the Followers of the Apocalypse and not fight at Hoover Dam , and if most of the responses suggest that people can ' t or won ' t change who they are , he will be inclined to join the fight . Meetup at the bunker . Once all five of the remnants are convinced , the player character must go meet with them at the Remnants bunker . The five words given to the player character make the phrase " Dear old friends , remember Navarro , " which will open the main door . Upon entering the bunker , the player character must head to the briefing room in the back and talk to Judah Kreger . He will ask whether the player character wants them to aid the NCR or Caesar ' s Legion . If the player character is siding with Mr . House or angling for an independent New Vegas , then siding with the NCR for the battle of Hoover Dam is the right choice . Siding with the NCR . If the player character chooses to ask them to side with the NCR , Orion Moreno leaves the room . He is found just outside the briefing room in the hangar . He will talk about his hatred of the NCR and will refuse to fight for them . If the player character has a Speech skill of 80 or has Wild Child reputation with the NCR , Orion can be convinced to participate in the attack , but otherwise he will attack the player character and must be killed . The player character can then return to the briefing room . Judah will tell you to talk to Daisy for power armor training . If you did not pick up Orion ' s armor , Daisy will give the player character her power armor , as she says it makes the cockpit " too cramped " if she ' s wearing it . Siding with the Legion . If the player character asks them to side with the Legion , Cannibal Johnson and Arcade Gannon will leave and there is no way to convince them to stay . The player character can then talk to Orion Moreno for training in power armor . Moreno will give the player character Johnson ' s suit since he won ' t be using it . Wrapping things up . Judah will ask the Courier to leave while they plan their attack . The player character will receive 500 XP and the quest ends . If the player character convinced the remnants to fight for the Legion , Arcade will approach the Courier and accuse them of being crazy and / or a sociopath , then permanently leave as a companion . If the player character convinced the remnants to fight for the NCR , Arcade approaches the Courier and asks if the Courier thinks he should join the remnants in the battle for Hoover Dam . The player character can suggest a path , but if that path contradicts the implications given earlier during the conversations , the player character must pass a Speech check of 80 to convince Arcade to choose a different path . Arcade will then tell the player character that there ' s something he has to do , and he will give the player character all the gear he is carrying for them and run off . A short time later , he will come back with the Gannon family Tesla armor . He may return while you are still inside the bunker , or when you first exit ; either way , it is not a long wait . If he plans to fight at Hoover Dam he will be wearing it and tell the player character that he can ' t turn his back on his family and his past . If he plans to go back to the Followers , he will give the player character the armor and tell the player character to use it well during the fight . Either way , he will then go away and will be non - recruitable for the rest of the game . If he chooses to remain with the Followers he will go away ( not respawn ) and if the player character follows him , eventually end up in the Lucky 38 suite with no possible option of recruiting him again . If he chooses to fight , he will be in the visitors center at the dam assisting the heavy troopers against the Legion . Exploit for keeping Arcade Gannon as a companion . It is also possible to complete For Auld Lang Syne , even in the Legion ' s favor , without losing Arcade as a permanent companion . Simply tell Arcade to wait at the Lucky 38 after recruiting the Remnants but before you enter the bunker . Arcade should still be waiting for you upon finishing the quest . Keep in mind , Arcade Gannon ' s ending will be absent when the game is complete if this is done , unless you later sell him to the Legion as a slave . You will also be unable to obtain the Gannon Family Tesla armor from Arcade by using this exploit .