Knife Defense Security Guard Training – Defensive Tactics Takedown | Unity One, Inc. Posted on September 1, 2017 by enginejuan 01 Sep In this video, John is a defensive tactic instructor at Unity One, Inc. Training Academy. The trainer will be teaching a class on how to become a security guard in … Let’s talk about dagger fighting | forward grip VS reverse grip SAMI Combat Systems – daily training – exercise 108 – Knife Fighting Concept Combat Drill 1