Fort Independence

Fort Independence is the headquarters of the Brotherhood Outcasts in the Capital Wasteland. It is guarded from the outside by Defender Morgan and Protector Casdin. Deep inside you'll find the many technologies the Outcasts have been hoarding, and many different research logs of their findings. Note, though, that if you are caught in the base by any of the Outcasts, they will become hostile and attack you. However, if you supply the Outcasts with enough pieces of technology (usually all the equipment from few Enclave encounters), you will be able to gain acceptance. This doesn't grant you an access to the fort, but by stealing a key from Casdin, you will be able to browse the fort freely, including stealing equipment which is not (probably by a bug) karma-bounded.

If you have the Lawbringer perk, all Outcasts except Casdin are considered 'evil' characters. They can be killed with no karma penalty and they will drop fingers that can be returned for a bounty.

Outcasts in Fort Independence are vulnerable to a Mesmetron attacks, as are Outcasts randomly encountered in the Capital Wasteland.

If you attack Fort Independence, you'll occasionally be randomly attacked by Outcasts seeking revenge as you wander the wastes. They often attack in pairs with some sort of robotic assistance.

Fort Independence is located southwest of Vault 101 and you can receive a trade quest from Protector Casdin to exchange modern technology for miscellaneous items, which provides (after ensuring considerable technology supply) an interesting solution for ammo shortage in the game.

You can trade any type of non-Outcast power armor, any type of energy energy weapon, sensor modules, and scrap metal. In return he'll give you varying amounts of: If you speak with Protector Casdin while carrying or wearing Outcast Power Armor, then he takes it from you. It does not appear to be possible to prevent this. The one exception to this rule is the quest reward item Linden's Outcast Power Armor.
 * 5.56mm ammo
 * Frag grenades
 * Rad Away
 * Stimpaks

Appearances
appears only in Fallout 3.