Duck and Cover

Alright. I've got to the Enclave oil rig, and I desperately want to finish the game. I've convinced the Doc in the presidential area to release the toxin which has killed all of the civilians and scientists. But he has inoculated me and my people.

I went to the president, chatted with him and then gave him an overdose of super stimpaks. As he lay dead as my feet I picked up his presidential badge. Then I went to chat to the wacky Republican vice-president. Planted C4 explosive on him and went for a walk, about one hundred seconds later it was raining limbs in the vice-presidents office!

Now, that I've killed the president I need to destory the power source so my villagers can run away to the tanker with the vault 13 people. Also I have to kill Frank Horrigan. But I've hit a hitch. How do I get to the atomic reactor! There are several blast doors which have been welded shut. I've tried blowing them up and shooting them but they won't break down. I've tried lock picking them and everything but I can't get through... and it's obvious that they lead to the reactor and Frank!

I used the President's key-card back at the dockside computer to turn off the defences and order the machine guns to attack 'rebellious targets'. But this is useless if I can't get to the reactor and ol' frankie Horrigan. Please explain how I get through the doors! Or am I suppose to do something else?

In the level where you can see the reactor, there is a room with a few scientists and a super computer or mainframe. Wait untill the scientists are dead and plant some plastics near the mainframe. Then just wait and see...Boom! Get back upstairs and prepare to meet Horrigan.

talk to a certain scientist (if your speech is high enough) that is in the room with the atom-bomb looking thing. if you talk right, you can convince him to release FEV (un-tainted version) into the air system. this will kill everyone without power armor on. now you can steal the president's pass key (no PA on him!) and plant some dino-mite in the computer room (with the big computer.. north of the inacessible reactor room) now... run like hell! (if you try to plant the explosives with the scientists alive, they will start combat and tons of people in PA will attack. so thats why you want them dead!)

get to the main entrence room. talk to the people in PA in the room right before the main room. this is sg.granite and his crew. convince them to fight alongside you against horrigan. now (save) and run like hell to the computer terminal to the bottom corner of the room. use it and activate the counter insergence (i think thats what it was called) program and the turrets should open fire on horrigan. along with sg.granite's crew and the turrets horrigan should be distracted wile you beat the crap out of him.
heheh, when he "explodes" dont attack him any more. just talk to him and leave him to be blown up with the rig.

hope that helped and uh... didnt spoil it too much!

from the "problems with end game" post

Was going to mention about it, but I forgot