Meeting the cowboy father of Constellation. He dislikes it if you accuse him of bringing a child into danger, though that's a fair point. ... https://www.youtube.com/watch?v=vFJEMfRVrP8
Ignacio is surprisingly more open to talking to you if you reveal yourself as a Brotherhood of Steel member. He also has a few different conversation topics regarding this.
Megaton Hairs - Vegas Edition by zzjay
https://www.nexusmods.com/newvegas/mods/62744
Classy Veronica
https://www.nexusmods.com/newvegas/mods/42827/
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https://www.youtube.com/watch?v=uW5L9CeZipI
A submachine gun that fires extra shrapnel at targets.
Can be pickpocketed from the Black siblings in Nuka-World with the More Uniques mod, or taken from their bodies if they rebel at the end of the Nuka-World questline if you gave them the least outposts.
More Uniques - Unique Weapons Expansion by noptasis
https://www.nexusmods.com/fallout4/mods/18357/
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https://www.youtube.com/watch?v=zW3q3dEQ91Y
You can only hear this tale if you speak to White Bird after he tasks you to find the Ghost of She, and speak to Waking Cloud afterwards for the story.
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https://www.youtube.com/watch?v=3K5uvHe9SNQ
A night mission for the Railroad assisting Old Man Stockton in clearing out raiders for an escaped synth to reach a safe house.
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https://www.youtube.com/watch?v=aZswlG3GTXI