From Toys Alliance Limited. The Acid Rain world of 1/18 scale military vehicles and figures continues with Kelsey, the NAUS 'Area 4' captain and combat instructor whose superb fighting skills are renowned throughout the NAUS Marine Corps. Intimately familiar with the human body and its weaknesses, she strikes her opponents with precise, deadly blows in the shortest amount of time. Each hyper-realistic military Acid Rain figure, vehicle, and accessory can be integrated with others in the series, all on a tiny scale!