From fire range shooting, to busting down barricades and doors, to taking on a vehicle ambush, law enforcement officers have to stay ahead of the modern criminal.
"All the stuff that we're showing patrol officers today are things that swat teams have been training for years," said John Curnutt, Director of Training for the Advanced Law Enforcement Rapid Response Training in San Marcos.
In today's world, it has been determined that patrol officers should get some of the hands on training techniques that SWAT officers already know.
"For decades it was a specialized unit with specialized training and they didn't show it to other people because hey that unit will handle it, that unit will do it," said Curnutt.
But that unit cannot always be there.
At the ALERRT training center at Texas State University in San Marcos, officers from across the country are getting what is called active shooter response training.
"How to go in and save people who are involved in a mass casualty event like in Aurora, Colorado, or Virginia Tech or Fort Hood. How to go in there and effectively stop a threat from further injuring or killing people," said Curnutt.
While the training at ALERRT may seem like make-believe scenarios, there are real people who wish it had come to their communities sooner.
"I lost my daughter in 2006 at a school shooting in Colorado," said John-Michael Keyes, founder of the iloveuguys Foundation.
Keyes' daughter, Emily, was shot and killed at Platte Canyon High School in Bailey, Colorado, on September 27, 2006.
Keyes is helping law enforcement handle active shooter situations better by showing officers and schools how to better communicate, by using the situation at his daughter's school as an example.
"At that school they actually called it a ‘code white'. What's that mean? And so being very specific with the language is real critical in an emergency because you never know who is in the building and being natural, clear and distinct with your language. ‘Lockdown' is certainly more distinct than ‘code white'."
Keyes is hoping to prevent a similar situation from happening at other schools and college campuses.
Also during the training, officers are also learning from the first responders of the deadly Arizona shooting rampage that also wounded Congresswoman Gabrielle Giffords. The idea is to teach others what they did right and what they would change from the response to the Arizona shooting.
"We don't like to see officers training, you know shooting and having to move and be aggressive, but it's all designed to save lives," Curnutt said.