Tran was a Breen who existed in the early part of the 25th century. During that time, he rose to the position of a H'ren medic in the Fifth Order. He was assigned to the Breen Confederacy forces under Thot Trel that were attacking Deferi space though he was unaware of his superior's ultimate motivations. Tran was involved in the boarding of a Deferi civilian starship in the Raveh system. He did not believe in attacking civilians as he saw no honor in such a tactic though he obeyed the orders of his superiors.