I mean… I get that you want to align Roy Mustang with lawful good because he’s a high ranking military officer, but the man literally overthrew the government because he didn’t like it
I mean sure, but that’s the best kind of lawful good lmao. Lawful alignments don’t mean loyalty to the law, just loyalty to law. That can take the form of a personal code or an idealized version of what the law should be.
True as it is he did still participate in genocide. he’d be lawful neutral at best.