Spectators watch as Marines with 1st Tank Battalion, 2nd Tank Battalion and 4th Tank Battalion compete in the 11th Annual Tank Gunnery Competition at Range 500, Feb. 20, 2014. The annual event has pitted the best of each battalion against each other in fierce competition since it began in 1996. - Spectators watch as Marines with 1st Tank Battalion, 2nd Tank Battalion and 4th Tank Battalion compete in the 11th Annual Tank Gunnery Competition at Range 500, Feb. 20, 2014. The annual event has pitted the best of each battalion against each other in fierce competition since it began in 1996.