>>8778188Militaries use them solely based on the assumption that the side that fires the most rounds wins the war. It really doesn't even matter what the military sidearm is because they are issued rifles.
When you are an LEO, your handgun IS your rifle, so to speak. So it is understandable that they would want a gun with greater capacity.
However, this doesn't mean they are useless. You wrongly assume that the way of the majority must be the correct way, and it isn't. Revolvers still serve many people well on a daily basis for a variety of reasons. There's a gun for every purpose and a gun that doesn't suit your purpose is just that.