You're not catching on. They weren't what we call "live fire" exercises. They were missions against enemies of this country, that were/are part of a training exercise, with real US military students, and real US military instructors, both from a real military "school"/course, against real foreign enemies of the United States. Now that serious training, not BS civilian, or BS police training. By the way, you know this guy "Mexican citizen Jose Garcia Zarate was cleared of murder charges on Nov. 30, in the 2015 death of Kate Steinle, who was shot on a San Francisco pier?" You know where the gun came from? A federal police officer left it in his car, and it was stolen. Real smart.