By the year 2287 Danse had achieved the rank of paladin and had risen to become one of Arthur Maxson's most respected officers. He was assigned a reconnaissance team and dispatched to the Commonwealth to investigate signs of the Institute's activities. However, misfortune quickly reduced the recon team to only three members. When the Sole Survivor first encounters Paladin Danse, he and what's left of his team are holed up in Cambridge Police Station, unable to proceed with their mission. Paladin Danse enlists the aid of the Sole Survivor to help him retrieve an item from the nearby ArcJet Systems complex. After their task is completed, Danse offers the Survivor the rank of Initiate in the Brotherhood of Steel, should they wish to join.
Provided the Sole Survivor enlists in the order, Danse will become a full companion following the completion of Shadow of Steel. On their journeys Danse makes it clear he believes the Institute and its synths are too dangerous to let live, and both must be eradicated for the safety of mankind. However, after the Survivor breaches The Institute's mainframe, it is revealed that Paladin Danse himself is actually an escaped synth. Danse, or unit designation M7-97, goes AWOL shortly thereafter. Elder Maxson orders the Sole Survivor to find and execute their former mentor, saying the existence of a such a creature cannot be allowed.
When found at Listening Post Bravo Danse will swear that he did not know he was a synth. The disgraced paladin then encourages the Survivor to carry out their orders to kill him, insisting an example should be made and that he "must be the example, not the exception." The Survivor must then choose to either execute Danse or convince him to flee the Commonwealth. If Danse survives the events of Blind Betrayal he will thank the Survivor and, with Maxson's promise not to have him hunted down, remains in the Commonwealth to aid the Survivor in their mission.
You can supply Paladin Danse with upgraded power armor by transferring it to his inventory an equipping it. With a fully upgraded set of X-01 power armor, this makes him a extremely powerful companion.
Equipping Danse with Calibrated power armor legs, if you have all three levels of Inspirational, can yield a carry weight of over 800 LBs in addition to his power armor.
Paladin Danse wears a full set of BOS T-60 power armor minus the helmet. Unlike other companions he cannot be commanded to leave his power armor and parts do not appear in his inventory.
Shadow of Steel: The Sole Survivor and Paladin Danse board the Prydwen. Danse becomes available as a companion after the completion of the quest.
The Lost Patrol: The Sole Survivor is asked to find what happened to the last Brotherhood recon team.
Blind Betrayal: Danse is revealed to be an Institute Synth. Elder Maxson orders the Sole Survivor to find and execute him. The Sole Survivor is given the choice to either execute him or keep him alive and in exile.
Airship Down: If Blind Betrayal has not been completed, and Paladin Danse is still alive, he will make the last stand with the Brotherhood of Steel. He can be killed by the player character, the synths or by the crashing airship.
Maximum approval with Danse awards the Know Your Enemy perk, which grants +20% more damage against ghouls, super mutants and synths. It is impossible to max out the relationship with Danse before completing Blind Betrayal.
Siding against the Brotherhood faction before Blind Betrayal makes him permanently hostile, removing him as a companion.
If he is alive after Blind Betrayal then a bug may occur rendering him unable to react to the player.
If Blind Betrayal has been completed, he may instead ignore the Sole Survivor and will only turn hostile if attacked. This appears to be a bug since the player character can still open the trade menu with him. The issue effectively removes him as a companion, but will not remove his perk.
Danse is a potential candidate for romance, an option that unlocks after reaching the highest level of affinity.
It is impossible to max out approval or complete a romantic relationship with Danse before completing Blind Betrayal.
By going through with the Minutemen ending without completing Blind Betrayal first, it becomes impossible to max out approval on that playthrough due to the preceding quest Liberty Reprimed being failed. He can still be recruited as a companion, however.
While traveling with the Sole Survivor after Blind Betrayal, he will use dialogue lines that imply he is still in the Brotherhood despite being exiled.
Following Blind Betrayal, having him accompany the Survivor as a companion turns the Brotherhood of Steel faction hostile. Dismissing Danse returns the Brotherhood to its normal disposition towards the player character. However, they will continue to attack Danse on sight.
Dismissing Danse to the Boston Airport after the Brotherhood of Steel ending could end up having Danse and Liberty Prime have an endless battle.
The Sole Survivor can kill any unnamed Brotherhood soldiers whilst Danse is following (including those on the Prydwen and at the Airport) without losing reputation with them.
If spared and convinced to stay in the quest Blind Betrayal, he will be wearing a suit of X-01 power armour next time player meets him.
If taken to Nate/Nora's corpse in Vault 111, he will show patience for the Sole Survivor's mourning.
After the completion of Blind Betrayal, Danse will show approval for several comments that support synths. For example, when the player agrees with Tony Savoldi's comments on synths' rights.
Possibly unintended, Danse will still show animosity towards Nick Valentine after Blind Betrayal.
Danse generally hates saving ghouls, but will like many of the kind comments made to them, like telling Kent Connolly not to sell himself short at the start of the Silver Shroud quest.
If one takes his BoS uniform before Blind Betrayal (or he somehow removes it), he will show up nude for the quest.
He is the only companion who will not accompany you during Mass Fusion. When you relay to the Mass Fusion building, a message pops up saying Danse has left to go to one of the settlements. This might be due to the fact that if you become enemies with the Brotherhood (which will happen if you proceed with Mass Fusion), you will immediately lose the option of having Danse follow you. You can still access his inventory and that seems to be the only interaction you can have with him thereafter. Attacking him will cause him to be hostile permanently; he can be killed in such a case.
If you have completed Blind Betrayal, have gotten Max Affinity, and you are still on good terms with the Brotherhood of Steel, before asking Danse to come with you he'll sometimes say comments to you as if you are in a committed relationship even if you are not.
"It's a good feeling, but it frightens me all the same. Having a bond with someone then losing them...it changes you."
"Don't you understand? Everything I had, everything I knew is gone. In the span of a few hours, my identity was ripped from me and my world turned upside-down." (Said in the final private conversation with him, after discovering he is a synth.)
"I started out as nothing, and I've ended up as nothing...and I don't know what the hell to do about it."
"Are you saying you're...in love with me? This doesn't make any sense. After everything the Brotherhood taught you, how could you be in love with...well, a machine?" (Said when the Sole Survivor chooses the "romance" option with him and succeeds.)
"You stood up to Elder Maxson for me. I'll never forget that for as long as I live."
"If it ever comes down to it, I'd gladly spill my own blood if it means keeping you by my side."
"I never thought there was room for anything in my life besides the Brotherhood. I'm glad I was wrong."
"Things couldn't be better between us...and for the first time in my life, I'm truly happy."
"If a machine and a human can learn to live in harmony, then anything's possible."
"Whatever caused our fate to intertwine would never let them unravel."
"Being with you has made me realize that I never want to be alone again."
"Being in love doesn't mean we have to stop fighting for what we believe in."
"You taught me what being close to someone really means. I'll cherish that forever."
"This is the happiest I've ever been since I've joined the Brotherhood. Thank you."
"If I lost you, I don't know what I'd do."
"It's strange. I've been alone for so long, I don't even know how to act around you."
"Decorum prohibits it, but I feel like being close to you right now."
"I like it when you're this close."
"If you want something, just say it, I'll make it happen."
"I always knew there was something missing from my life. Now I've found it."
"With you standing by me, I feel like I can take on the world."
"I like when you're this close."
When dismissing Danse:
"I'll head back to the bunker and wait for you there. Just be careful, i-...if anything happens to you...I honestly don't know what I'd do."
When swapping Danse with:
Nick Valentine: "I can't believe you're replacing me with this... thing", to which Nick replies: "Believe it, bucko. Now isn't there someone else you should be irritating?"
Hancock: "Keep away from me, you filthy ghoul", to which Hancock replies: "Don't flatter yourself, crew cut. You ain't my type."
Curie: "Be replaced by a machine... embarrassing."
Cait: "Just make sure you keep our mutual friend safe.", to which Cait replies: "Yeah, take a hike, Danse. This calls for a lady's touch."
Deacon: "There's something you're keeping from me, Deacon. If I find out what it is and I don't like it, there will be hell to pay.", to which Deacon replies: "Well, good thing I have nothing to hide then."
Strong: "Why you choose to travel with that mutant is beyond me. It should be destroyed.", to which Strong replies: "Metal man make Strong mad!"
Piper: "Exercise extreme caution out there, Piper. The Commonwealth is hazardous for civilians", to which Piper replies: "I can handle myself, soldier boy."
MacCready: " I’m not sure why you’d want to travel with this... insubordinate civilian, but it’s your decision", to which MacCready replies: "Yeah... sorry Danse, I couldn’t hear you over all that clanking."
Unused dialogue suggests that Paladin Danse and the Sole Survivor were originally able to challenge Maxson's authority as Elder through combat according to "the Litany". Through his defeat, it would have allowed Danse to regain his status as Paladin and grant the Sole Survivor the rank of Elder within the Brotherhood.
pc Sometimes when sending Danse to Boston Airport, he will spawn in the Warehouse room that is inaccessible until further down the Brotherhood of Steel story-line. If this happens, on PC one can use the moveto console command to move Danse next to the player character. He will reappear after you complete the quest The Nuclear Option (Minutemen).[verified]
pc If you complete the main quest line, Danse can become bugged to where you can no longer initiate dialog with him,(thus unable to do his quests) despite being friendly with the BOS.[verified]
pc When stationed at Listening Post Bravo, the player may find Danse with all X-01 power armor despite a T-60 Helmet. When looking into his inventory he clearly does not have X-01 armor. This can be fixed by re-equipping the T-60 power armor that is listed equipped in his inventory.[verified]
pc If the player has assigned Danse in Boston Airport and completed the quest Blind Betrayal, he will go back to the airport, sometimes spawning in the middle of the warehouse. Since the Brotherhood of Steel members will attack him on sight, your settlers might join the firefight as well, triggering a massive firefight. Being essential NPCs, your settlers will overpower most of the BoS members stationed in the airport, save for the essential NPCs like Madison Li, Ingram, Gavil, and Lucia. Your only way of "fixing" this is letting Danse and your settlers clean the place up and when the essential BoS NPCs are down, talk to Danse immediately and ask him to join you. Now leave the airport and fast-travel to another location so you can safely re-assign him to another settlement.[verified]
pc In the quest Blind Betrayal, upon exiting Listening Post Bravo with Danse (having refused to kill him), the dialogue in which you have the option to either execute danse or persuade Elder Maxson to let him live may be skipped altogether, resulting in the immediate execution of Danse by Maxson.[verification overdue]
When in a fight with a Brotherhood Knight or any variant with a Fusion core and a gatling laser in the inventory. when the knight is killed danse may take the gatling laser and the fusion core and gain unlimited ammo.(where the fusion core wont drain, this maybe caused by him equipping it into his power armor and the gun at the same time making him have unlimited ammo).[verification overdue]
If Paladin Danse is convinced to exit his power armor, dismissed to Covenant and then left for a few days with a store or wall strategically placed between the houses on the left, some NPCs may be stuck on him, but when activated the player character will immediately ask him to remove the power armor. The armour does not show up in his inventory when worn, but his power armor's stats are displayed.[verification overdue]
pc When other power armor parts are equipped for Danse, they will count upon his carry weight, and lessen how much he is able to carry. Additionally if any of those power armor parts are unequipped, Danse won't get get back his old armor, but rather the power armor frame will be visible. It seems this has also in some way decreased his total carry weight drastically, to the point where he for some reason can only carry a bit over 10 pounds, even after emptying out his entire inventory. It is advised to let Danse keep his power armor on. (This is likely due to his own power armor pieces still being in his inventory, and taking up carrying capacity, albeit still being invisible, much like follower weapons.)[verified]
One way to fix this is with console commands. Use the console command 0005de4d.showinventory to get the IDs of his power armor pieces, then use 0005de4d.equipitem "ID of armor piece" to get Danse to put his armor back on. After doing so, 0005de4d.showinventory should show that all of his power armor is now equipped.
Put his gear in a container and command Danse then have him inspect the container as many times as there are items in container. Key being to stand back far enough from container when in companion command mode, otherwise you see contents of the container. Command and Trade to equip the gear.