Operator Bleach is an American Operator hailing from South Dakota, he doesn't specialize in security and combat but rather logistics and operations. Whenever they need to set up a field facility they send in a team like his to help oversee operations and help set up the laboratory equipment. He specializes in establishing and maintaining quarantine zones in areas that have been deemed unsafe.
Before the outbreak, he spent most of his time in the United States and in European countries at various bases of operation belonging to the Corporation. He acquired a large amount of experience out in the field accompanying researchers while they attended various infectious outbreaks that took place all over the globe. It wasn't until the outbreak truly began unfolding that he was moved by his superiors to deal with some tasks that needed to be handled in Asia.
He had a close call at the start of the outbreak when his team was ambushed by a group of state actors in a destabilized country, this cost him the lives of a few of his close colleagues that he had been working with in the Corporation for the last few years. However since then he has worked with a few various teams, one of which was Denrei's team. He has been with Denrei for quite some time, having initially traveled from Vietnam to Japan, where he was stationed for Six months. He and his team, along with Denrei's team have been sent west, making multiple stops all the while escorting a high ranking / clearance Scientist in the Corporation from Japan. After his briefing at the Corporation’s satellite FOB 75 km from the border of South Zagoria he was separated from Denrei’s team. Being deployed to this new zone was simply another assignment that would bring in a big paycheck. But after coming in contact with the locals, hearing the stories of violence, and witnessing his partner Denrei be torn apart by a wild animal, Bleach no longer considers this another “simple assignment”, but a breakneck warzone desperately in need of an orderly establishment, and a cure.
Now Bleach is ready to do the work that needs to be done on the ground, he and his team specialize in this kind of thing-- however-- even after the quarantine zones are set up, he and his team will probably be remaining in the country to offer a helping hand in the coming years.