For me the overall goal of weapons training is survival. I want to win by staying alive. To do this, I must stop the threat before it stops me.
Proper training will program the mind to perform adequately in life threatening situations. When the time comes to perform in such a situation, there will be no thought process, only reaction based on skills that have been programmed. If there has been a lack of training, there is very likely to be a lack of adequate performance. In this situation, luck plays a larger role in survival. Good training increases your odds and luck is less of a deciding factor.
Proper training will program the mind to perform adequately in life threatening situations. When the time comes to perform in such a situation, there will be no thought process, only reaction based on skills that have been programmed. If there has been a lack of training, there is very likely to be a lack of adequate performance. In this situation, luck plays a larger role in survival. Good training increases your odds and luck is less of a deciding factor.