Blue Requiem was a lethal unit of droids who had built themselves and one another out of the remains of an old separatist vessel. Originally they began fighting within the arena to gather funds to further upgrade themselves. however after realizing how effective and deadly they were, Blue Requiem took on their name and fully embraced the purpose they found within this new life.
BR-1 was the first of the group to rebuild himself, formerly a B2 super battle droid he has gone to nearly erase the physical appearance he once had with “improvements” BR-1 is the leader of the group, having saved the others.
BR-2 was the first droid restored by his captain, formerly being discarded after being broken in a diner he is now known for his lethal precision and serves as the groups marksman.
LD-4 was previously a separatist loader droid but after being destroyed only his primary circuits remain. He now wields duel flamethrowers that roast anyone who opposes Blue Requiem.
SYD-T-SL0 doesn’t have a known past. All he and his companions know is that he was discarded for incompetence. However SYD is very digitally skilled, capable of hacking and manipulating any other mechanical device. He wields a staff but clumsily hits his brothers with it more than his opponents.
