First you need the three special keys from Dukov, Ted strayer, and President Dave. You then go to fort constatine. There is a small "house" called a bungalow. This place is infested with robots. Go inside and there is a stairwell. There is an open safe with the isbm launch codes and the big guns bobble head. Use the keys to enter in the metal door. Pretty much there is a path or use the local map. When you get to a room with a dead body, Tara, and usally a robot go to the dead body. There is a key to the door she is leaning in. A fat-man with mini nukes and the power armor with a terminal underneath it. Use the terminal to unlock the suit and you have it. stats helmet-1 charisma and 8 rad resistance armor-25 rad resistance Over all is has 60 dr, 10 helmet and 50 armor.