Fighting is chaotic, unpredictable, and ugly. Technique breaks down and deteriorates in a real fight. So fighting can look like anything or like nothing. So train the principles and apply those principles to your techniques, but understand that your techniques will deteriorate in the chaos. And so regardless of what system you train, when in a fight they are all likely to look much alike, tho of course maybe not exactly. How you train the principles such as how do you generate your power, is what defines your style. In a real fight, strategy needs to be simple. The fight should be over quickly, there is no time to develop and apply a sophisticated strategy. In a competition fight that is likely to last some time and not be over quickly, you can have time to develop a more sophisticated strategy. That is a different situation.