Ranger Citadel is now occupied by robots and synths, so the Rangers will need to fight their way in. Various allies will also gather in front of the Citadel depending on your earlier choices in Arizona for the various towns and can be brought in for the final battle.
Giving Ethil Mercaptain the DAT tape found in a toaster in the New Citadel nets you a few powerful weapon mods. Don't miss the minigun "The 3" in a crate as well.
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https://www.youtube.com/watch?v=rpNmKZJV2DA
Stealth is optional for this mission. Delgado and the pirates of course wouldn't care, but Ikande will yell at you once again.
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https://www.youtube.com/watch?v=tsxtsgmdXAo
And then Bowser does a sick air guitar and challenges Mario to a rock off.
Footage from the new Super Mario Brothers teaser trailer and sound from School of Rock.
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https://www.youtube.com/watch?v=rFwtpR4TZ-0
Also includes a few of Heather's comments as well.
Atomic Radio and Tales from the Commonwealth
https://www.nexusmods.com/fallout4/mods/8704
Heather Casdin - A Unique Companion Experience by llamaRCA
https://www.nexusmods.com/fallout4/mods/23273/?
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https://www.youtube.com/watch?v=kImKphiLZx4
The Liberator rifle can be found in Black Mountain storage with the Project Nevada equipment mod.
Also includes the Black Mountain password if you have difficulty opening Raul's prison door.
Project Nevada
https://www.nexusmods.com/newvegas/mods/40040
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https://www.youtube.com/watch?v=QNz-TPw51Lo