This is part of a fake city in Camp Grayling, MI used for CQ and urban combat training. This represents an urban municipal building. Entirely made of concrete with silhouette cutouts and manikins spring-loaded to pop up in various windows and doors.
This is the interior of a fake church including concrete pews, stage and altar. Explosive sounds, chaotic screaming and yelling and smoke are piped in along with remote controlled lighting.
