The following is based on Fallout cut content and has not been confirmed by canon sources.
“I've been researching information about our predecessors from before the war and about the societies of the outside world. I think that the Brotherhood comes closest in organization to the Knights Templar of the so-called 'Dark Ages'.”
Brenden is working on a treatise on the social dynamics of the Brotherhood. He is researching information about the people from before the Great War and about the societies of the outside world. He thinks that the Brotherhood comes closest in organization to the Knights Templar of the so-called 'Dark Ages'.
He came to the conclusion that the Brotherhood functioned mostly like a pseudo-religious organization. They have the strong military hierarchy, combined with codes of honor passed down from their ancestors. He thinks that there are two paths of development for the Brotherhood: a techno-religious dictatorship or a benevolent research society. He thinks that General John Maxson, the High Elder at that time, was a leader who was both strong and visionary.
Brenden was going to appear in Fallout, but was apparently cut from the final version of the game in fear of being misleading about the Brotherhood's backstory. His dialogue file can be found in the MASTER.DAT, though it is unused.