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. But to be noted, is that if you are caught by any of the outcasts while in their base, you will be seen as a threat and dealt with accordingly. However, after bringing enough of technology items (usually all the equipment from few enclave encounters), you are able to talk your way into outcast acceptance. This fact doesn't grant you an access to the fort, but 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. Almost all Outcasts drop fingers, as 'evil' characters you can kill them with no karma penalty, with the exception of Casdin.

Outcasts in Fort Independence are vulnerable to a Mesmetron attacks, as well as 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 come in pairs with some sort of robotic assistance.

The headquarters is 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 weaponm, 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 Armour then he takes it off you. It does not appear to be possible to prevent this.
 * 5.56 ammo
 * Frag grenades
 * Rad-away
 * Stimpaks

Appearances
appears only in Fallout 3.