The system is not just for new squaddies, with programmes written so trainee officers can practise techniques such as calling in air support.
Experienced soldiers about to go on overseas deployments will also be able to use the simulator to practise in something like the surroundings they will be faced with when they arrive, before being sent on their missions.
With plans to build similar ranges at Burnham and Linton camps, one day soldiers at all three camps will be able to play real life, real time war games against each other without ever venturing out into the wind, rain and cold.
The simulator is housed in a large warehouse. It contains two ranges, each with 12 lanes and their own weapons pits. Opposite the soldiers are three large screens, making it look like a cinema complex.
The British and Australian armies have similar ranges to Waiouru, which is the largest such facility in the Southern Hemisphere.
"This innovative piece of equipment gives the army the ability to use a variety of weaponry in high-tempo, real-time and challenging situations, without the intervention of adverse weather conditions," Chief of Army Major General Lou Gardiner said.
"This means more training days being available."