The video above get right to the point showing the location of the Nuka Cola power armor and how to get it for yourself. I have yet to do this treasure hut yet whereas I’m still searching for the right plans and mods to allow my suit of armor to carry more items.
From what I’ve gathered online through various Google searches is that you have to keys and visit random places to access the Nuka Cola Power Armor. Lucky for you… I’ve found this “where to find Nuka-Cola Power Armor paint” guide that gives step by step directions.