Beth butchered Fallout 3 and the only reason we had a semi worthy successor in New Vegas is that some of the original developers where involved, they would make a ungodly mess of any online attempt at fallout.
FO3 was a awful game for many many reasons, mostly the non nonsensical BOS and fully retarded implementation of the Encalve which if you go off the cannon set forth in FO2 was totally destroyed by the hero when he blew up the oil rig, apart from a few survivors on the main land either at Navaro that was eventually wiped out by the BOS and the NCR before there relationship soured ( an possibly a few other random spys out in the waste land).
And before you get me started on Non Marriposa super mutants and how dumb they are let me just point out that not all super mutants talk like a retarded weightlifter after a full frontal lobotomy and behemoths didnt exist, super mutants happen when you dip some one with a low rad count not by clubbing some one over the head then locking them in a room with airborne FEV1 after they spent they whole lives eating irradiated food, living in a radioactive wasteland drinking 300 year old toilet water with a high rad count what you would get is at most a centaur, and they should not even exist in FO3 as the master specifically bread them from people who could not be turned into a classic super mutant by dipping them with other animals to create a hybrid creature.
And Harold? Please he was atleast 150 by the time FO2 began he was a child taken into a vault during the war he left when he was 14 / 18 became a trader and then set out to find the source of mutated animals attacking his and others water caravans, along with Richard Grey (who eventually became the master) found the Marriposa base and the automated defences took them apart harrold fell in a vat and turned into a Ghoul like mutant. Skip forward to FO2 he is the mayor of a town built round a nuclear reactor and is quite happy there. Why would he walk (no public or national travel) to DC then sit in one place long enough for the tree in his head (that was a small sapling growing out his head in FO1) enough to create that farcical tree growing paradise?
Also the C96 pistol was rare in FO2 (an there was only one in FO1) why are there so many in FO3? And why would the technologically advanced Chinese army be using a design dating from the beginning of the 20th century?
I am going to stop now and stick pins in my Voodoo dolls of the beth developers.