Yep ...
The situation will dictate the strategy & tactics available, and the shooter will determine which shooting "skills" should be employed in any given situation. The more skills you have at your disposal, the better prepared you may be for a deadly force situation ...
Each and every round fired is Deadly Force, and the responsibility of the shooter to be able to justify at a later time ...
As an example, we constantly change the circumstances of the scenarios used for our qualifications. This includes the nature & number of targets ... shoot/non-shoot, multiples, obstructed, moving target/shooter, etc ... and the manner in which the targets are to be addressed. These vary from one scenario to the next, and among different sessions.
A shooter may have to demonstrate the ability to perform 1, 2, 3, 4, 5, and up to 6 round strings against specific targets ... including "failure to stop" skills (2-COM & 1-head shot) ... in various orders, against single and/or multiple targets, in as many different situations as we can arrange.
One of the goals is to get our folks to recognize for themselves which shooting skills may be required to address any potential threat they may encounter, including how many rounds are reasonably necessary ... not to teach them "tactics" which "require" them to respond with a predetermined number of shots at any given threat target, in any given situation. We help them develop the "tools", the skills ... and they ultimately decide when & how to best employ them should the necessity arise ...
The fact that we continually change the qualification scenarios appears to help them recognize when their skills might require some additional training and work, and then reinforces their confidence when they use their skills to successfully complete the scenarios.
We want them to be able to remain aware of how rapidly a situation may change, and how flexible they must be in using their shooting skills. The "reasonable and necessary" number of rounds fired at any given threat target, and the order in which multiple targets should be addressed, will be their call to make should the situation occur ... and we just want them to have the skills and confidence at hand to meet their needs. We can't tell them what the "right answer" will be for all situations ... so we help them test their skills in as many changing situations as we can imagine ... and often in ways the shooters ask about, themselves.
This is "tip of the iceberg" material ...
Naturally, nothing I've said should be considered as advice or official/personal training suggestions ... just one person's observations and perspective from the sidelines ...
I know that it is much easier with a .22 than a 9mm
There's simple wisdom in those words ...