Not sure exactly what part your talking about, if you could be more specific. In Black Mountain there is a lock which I believe is hard or very hard. You can go around another way which is much longer but it will take you to the same place. I think you just stay left instead of right or maybe vice versa.
i need to get inside the broadcast building to end Tabita's reing of terror but when i go to the door on the 2nd floor it tells me i requires key to open , the name of the quest is Crazy,Crazy,Crazy.