As a note about lightsabers and no quick kills, there is also the fact that at this time the Mandalorians were supplying both themselves and others with beskar or Mandalorian iron. When properly processed (the Mandos kept this part to themselves, sellling only the finished metal), it made armor that when hit with a lightsaber ended up with a shallow score and slight burn on the metal. They also used it to make their own blades as well as the armor plating on their vehicles, starships, and basilisk war droids. It's a major reason why their culture has always been a pain in the collective backsides of Force users throughout the history of this galaxy far, far away. Add this to the fact that because there was no shortage of Force users at this time, that anyone serving in a military was given at least some training in how to combat them. Some training was better than others, of course, ranging form 'don't let the glowy stick hit you' to techniques on avoiding mental coercion.