
A nearly 10-year effort involving Hollywood set designers and military virtual-reality experts has yielded a remarkably convincing simulator for familiarizing Marine Corps troops with their combat equipment.
Called the Gruntworks Research for Infantry Testing, or GRITT, the advanced facility originated with the Office of Naval Research that two years ago launched another high fidelity training system for Marines.
GRITT uses 21 cameras that records all action and can then replay scenarios as a virtual display. A spokesman says it will measurably help Marines to improve their battlefield kits and should lead to the acquisition of lighter equipment.