You can not go back in and out of Vault 101. After you first leave the Vault the only time you can go back in is for the quest "Trouble On The Homefront." but once you beat that side quest you are not allowed back in Vault 101 ever.
if you tell him to leave then he goes back to vault 101.
you are born in the capital wasteland. your dad then moves into the vault 101. one day he disappears and you go out to look for him.
Yes. Seven vaults exist in Fallout 3. One of them is Vault 101, where your character begins the game. For spoilers as to who or what lives within the remaining vaults, check http://fallout.wikia.com/wiki/Vault .
The real purpose of vaults was experiments. Most of all vaults had a secret experiments Vault 101 was designed to see how the residents react t long term isolation from the outside. Vault 87 was testing the effects of FEV virus. You can go to the fallout 3 wiki for more information.
Sort of. If you buy Broken Steel, you can get a perk called "Puppies!". If Dogmeat dies, one of his puppies will be at the entrance of Vault 101 waiting for you.
There are no enimies inside the vault itself but there are a few mole rats in Smith Casey's garage, which you have to go through to get to vault 112
yes it should but you will probably have to wait 24 in-game hours to have the new dog appear. Just go to vault 101 and the puppy will be there
Invest in the Puppies Perk if he died. If you just lost him go to Vault 101. He will be right outside Vault 101 if he died too and you get the Puppies Perk.
Vault 112 is in Casey smiths garage once you activate the electrical switch and you will have the doors into the basement open and then you get into Vault 112 and are spoken to by a robo-brain or whatever, and you go into the machine after you change into the Vault 112 vault suit.
go to clifftop shacks of if you don't know where it is go to vault 92 then go west to a gorge then search for trees and its there
If your talking the ripper as a weapon then you can find about 7or 8 in Anadale . You go through it when you save dad from the vault.
Alot of times that has to do with the reactors shutting down, raids, exposure to radiation and such. It is annoying sometimes. There is a vault i found, i believe it was fallout 3, where there were a bunch of clones of one guy. They were all hostile and I never discovered anything about the place.