Koster was an African-American woman that was a member of the Megaforce mercenary group in the year 2000. She was one of the many soldiers hired to protect the research team in Venice, Italy as they investigated the pollution. While scouting out the complex with fellow soldier Kowalski, she was attacked and captured by a biomechanical monster, which took her to be cocooned. It is presumed that she either mutated into a creature herself, or perished when the complex self-destructed from Samuel Fuller's sabotage.