Whats the story behind Burning man in the first war ?
The Burned man was Caesar's Legate at the time, named Joshua Graham.
He lost, Caesar had him lit on fire and thrown into the Colorado.
He was supposed to play a bigger role in the canceled Fallout 3( Van Buren) which was supposed to have a time frame and setting a lot like that of FO:NV.
I'm not sure if he's in FO:NV.
http://fallout.wikia.com/wiki/Burning_Man