While researching and doing some digging on the older Falcom sound team, I managed to figure out who is in the pictures of the Brandish 3 booklet. In this picture:
https://imgur.com/a/fyqNscY
According to KIM (Naoki Kaneda):
Left to right: Satoshi Arai, Naoki Kaneda, Atsushi Shirakawa, Kishimoto, Endo, and (maybe) Mixing Engineer.