Special Reaction Team Marines and police officers with the Provost Marshal’s Office aboard Marine Corps Air Station Beaufort trained in Charleston, S.C., Nov. 18. The team members conducted new courses of fire for the M4 carbine, the M9 pistol and the M40A5 sniper rifle. The Marines shot weapons at various target sizes from several distances, with different drills to better prepare them for an array of scenarios they could face. SRT is a group of military policemen trained to handle missions beyond the call of duty for basically trained law enforcement.