Smoke, barrels, and lighting effects set the stage for an authentic tactical experience at Las Vegas Gunfights' combat arena. And "authentic" is the key word. The Simunition used here has also been employed by the military and law enforcement to provide realistic, non-lethal simulation training. Las Vegas Gunfights' staff takes real pistols or rifles, then equips them with Simunition FX marking cartridges. Similar to paintballs, these reduced-energy, non-lethal cartridges leave a detergent-based, water-soluble color marking upon impact. The staff hosts one-on-one and two-on-two matches, and visitors either participate or watch as spectators. They also provide safety gear and masks, as well as training in tactical techniques, before each group begins.