Fort Independence

Fort Independence is the headquarters of the Brotherhood Outcasts in the Capital Wasteland, located west from the Fairfax Ruins. The Outcasts have adapted the Fort to their needs and restored much of its internal facilities. All of the technology they gather is stored within the fort, as are their research findings. By default the Outcasts inside are hostile to any trespassers. The Vault 101 Dweller can become accepted by the Outcasts if he pleases Protector Casdin by scavenging enough technology for him.

The fort is guarded on the outside by Defender Morgan, Defender Rockfowl, and an automated defence turret. After the Vault 101 Dweller speaks with Defender Morgan about a job, Protector Casdin will open the perimeter fence's gate and encourage the Vault 101 Dweller to bring scavenged technology to them in exchange for supplies (see Technology scavenging below). He also carries the key to the Fort, which makes it possible to get in without having to pick the lock.

Technology scavenging
You can trade any type of power armor (except for Tesla Helmets, the T-51b Power Armor, the T-51b Power Helmet, Outcast Power Armor, and Outcast Power Helmets), any type of energy weapon (except for unique weapons and Gatling Lasers), sensor modules, and scrap metal. In return he'll give you either of these, in accordance with the perceived value of the item:
 * rounds of 5.56mm ammunition
 * Frag grenades
 * Rad Away
 * Stimpaks

If you speak with Protector Casdin while carrying or wearing Outcast Power Armor, then he takes it from you without recompense. 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.

Its worth noting that you can get a stimpak for less scrap metal here than you can at the other trade in sites.

Appearances
appears only in Fallout 3.