Raider (Fallout 3)

Raiders are hostile characters in the Capital Wasteland

Background
The raiders of the Capital Wasteland are mostly hostile, lawless, chem-addled ruffians who roam the wastes of the Washington, D.C. area. They are encountered in smaller groups and are armed with a fairly wide range of weaponry.

Raiders have no alliances with other factions and will attack everyone but other raiders or slavers. They appear to be quite cruel, as places they inhabit are usually filled with the mutilated bodies of other raiders and wastelanders.

Raider hazing
The Lone Wanderer may come across a random occurrence of a raider hazing ritual. Four raiders surround a fifth raider initiate standing in only his underwear, each taking a turn in beating him with a melee weapon. Sometimes the raider can be seen smoking while the beating is taking place.

Wastelander bombs
On rare occasions, a wastelander may come running up to the player character, saying that raiders strapped a bomb to them. The player character is given the option to disarm the bomb. However, Explosives skill does not factor in the chances of disarming it successfully. If the player fails, the wastelander will run off, and die shortly thereafter in an explosion. However, if the wastelander is killed before they talk to the player character, the bomb will explode either when the player approaches it or after some time.

Massacred Enclave
After The Waters of Life, Enclave camps will appear throughout the wasteland. A few of these camps will be trashed with raider graffiti everywhere, and the Enclave troops will be dead and stripped. 3-4 raiders in Enclave armor are usually nearby. One of these camps can be found southeast of Bethesda ruins, northeast of Chryslus Building and south of the raider shack.

Mole rat race track
Slightly west-southwest of Grayditch, a small group of raiders can be seen holding mole rat races on an abandoned highway. The scene is complete with a pistol shot to start the race. The mole rats then meander back to their cages to begin the process again.

Non-hostile raiders

 * West of Tenpenny Tower and north of the Warrington station, there is a non-hostile female Raider with a missile launcher sitting behind a car. If the player talks to her she will respond with "I'm not in the mood for you, asshole." When the local Brotherhood of Steel water caravan passes by, she'll attack, and other raiders will pop out to assist. If the raiders are killed, she will continue wandering around until she is killed eventually by other means, as if nothing happened.
 * In Marigold station, there is a safe in a supply room which holds an item for the unmarked quest Grady's Package. If the player managed to obtain the item, a raider named Lug-Nut will come to them unexpectedly, demanding the item. If the player character gives him the item (thus, being unable to finish the unmarked quest) or pass a speech check, he will merely wander around the area and will not attack them nor the fire ants. Declining him will result in hostility though.
 * Within the Evergreen Mills bazaar, is a passive raider merchant, known as Smiling Jack.

Evergreen Mills
At the Evergreen Mills bazaar, there is a passage in the Northwest corner of this central area, flanked by a pair of mannequins decorated with red lights, where the player character will be greeted by Madame. A few raider women are found locked in cells. Upon release, they will attack the player.

Ex-raider
One of Megaton's inhabitants, Jericho, used to be a raider. He says he stopped because he's too old and the current raiders don't know anything about respect. Shrapnel, one of the owners of the weapon store in Rivet City also used to be a raider.

Appearances
Raiders appear in Fallout 3.