At Combat Shooting Sports Inc. combatants are outfitted for controlled engagement using real weapons in an air-conditioned indoor arena. Using Simunition, firearms are converted so that they cannot fire live rounds, allowing for realistic training involving customer's own service weapons. Conversion kits are available for customers who bring their own firearms, or they can use ones provided by Combat Shooting Sports. After briefing players on using the gear and the rules of play, the staff releases players into the arena, where they test their skills among rooms, corridors, and plywood houses. In addition to the indoor arena, Combat Shooting Sports has a wooded terrain available to combatants.