As with many RPGs, factions play a large part in the Fallout universe, and in Fallout 4, the Sole Survivor’s choice of faction can influence many things, from gear to the games ending. While there are a range of groups that will open their ranks throughout the game, one of the key players is the returning Brotherhood of Steel, who first appeared in the original Fallout game. But who are the Brotherhood of Steel in Fallout 4 and are they worth joining?