McCormick developed his interest in Combat Martial Arts in the U.S. Marine Corp. He began in traditional Karate where he won a bronze medal in the World Karate Tournament championship.
Realizing sparing was not his destination, he studied combat martial arts under Professor Bradley Steiner and received his Black Belt from the 10th Degree Black Belt in Jen Do Tao an electric system of Combat Martial Art that combines Karate and Jujitsu and incorporates knife and stick fighting adopted from many disciplines.
Steiner is known for his knowledge and expertise on the combat use of firearms. He writes for Handgun magazine and has been featured in Black Belt, Karate Illustrated and Soldier of Fortune. He is the former Washington State director of the American Society of Law Enforcement Trainers and was involved in training survival skills to Navy pilots fighting in the Gulf War.
McCormick has worked with members of various law enforcement agencies in Canada and the United States in officer safety and edged weapons defense.