There is no more a master key in Fallout 3.
yes
You do not need a key to open the vault. All you need to do is go to the blinking box next to the door and it will say to press a button to activate it. When you press the button then you will hear a siren and it will open the door.
There are no Mounts in the unmodified version of Fallout 3.
You can find President Eden in Fallout 3 at Raven Rock, but he is also a computer!
contract killer perk
go to games for windows find the fallout 3 dlc buy it and you will have it
you can not find any energy cells in Fallout 3 after you find the ones with the alien blaster, you are limited to that number
No, you can only craft, find or buy the dart gun in Fallout 3.
You would need to have the PC version of Fallout 3 and download a mod.
fallout3nexus.com
find who
Ted is in Rivet city, usually meandering about in the marketplace or on the deck of the ship. You can convince him to give you the key through intimidation or bribery.