"Most are, there are a select few that are not. I just exercise caution when you see one. The armor is usually a telltale sign. You see a visor unique or a group of them very similar on that type of armor, it is probably safe to say they are Mandalorians. One other thing, cutting at the fuel hoses...don't work anymore. They got fake hoses and most have built in power sources of Isotype Five, a slowly more common extreme power source. They let you think they have fuel to build the advantage. Learned that the hard way."