Blood Brotherhood

Blood Brotherhood is an unmarked and repeatable quest in the Fallout 3 add-on Broken Steel.

Synopsis
After the completion of Who Dares Wins (if the player character does not destroy the Citadel) Paladin Tristan asks the Lone Wanderer to kill super mutants and bring back blood samples, so the Brotherhood can research them and keep better track of the Lone Wanderer's efforts at thinning their numbers.

Walkthrough

 * 1) Kill a super mutant.
 * 2) Loot the blood sample from the corpse.
 * 3) Return to Paladins Tristan.
 * 4) Receive compensation.
 * 5) Repeat.

Bugs

 * Occasionally, Tristan's dialogue for exchanging the blood samples for caps will go normally, but neither blood samples nor caps will be transferred. This can be solved by not speeding through Tristan's dialogue during the actual transaction.