Actually you don't need to do this quest to join the Brotherhood. Unless you want to side with Hardin, but he has a ridiculous haircut so I don't know why anyone would want to do that.
http://images.wikia.com/fallout/images/a/a1/Edgar_Hardin.jpg
thanks for all the help . actually my dad uses this hair cut . lol , the reason behind it is that his bold in the middle
so he gets the hair from the side all the way to cover the top , the silly thing is when its windy the hair would just drop down
long to his shoulder while the other side of his head is totally empty so he always needs to bring it back like a teen age boy fixing his pony tail. i never understand why he dose it like that but i guess i never asked :mohawk:
well back to the game , i dont care about the virus isolate but that elder wont talk to me , he says it must be in the headquarter room or something , i cant get him to go there !!