Secret Skills

I am looking to increase my knowledge in understanding the importance behind a tactical training skill called "Ambush'' when I was a child, I had viewed a DVD film called ''Combat Ambush'' & ever since then I have been able to see helpful the education that must go into evading aggression towards higher ranking personas & can really use the help. I have since not been able to locate the instructor behind that making of the ''Combat Ambush'' DVD film so, it's understood to keep up the same approach to the field of study due to isolation that's why I need about 16 hours of research that is made available THANKS