During the operation, all of Daimio’s fellow Marines were slaughtered by a mysterious entity, and after the left side of his face was scarred, Daimio was killed, too.
However, he miraculously came back to life three days later and was eventually transferred to the B.P.R.D. Thanks to his unusual experience, Daimio later learned he could turn into a jaguar-like creature when under extreme stress.
Before joining the B.P.R.D. (Bureau for Paranormal Research and Defense) in the comics, Major Ben Daimio led a U.S. Marine squad that was sent on a rescue mission in the Bolivian jungle.