But I didn't want to imply "bad." Just different types of stories.

Everyone has their own subsets that work in their heads. For me, military sf is about military action--the enemy is worth shooting down, the weapons always work, though you might find scummy officers the basic structure of the military isn't under question. I think of it as akin to playing computer games in which the fun and relaxation is in guilt free mowing down of enemies. I've read any enjoyed many--though as I get older I like a bit more character and humor.

Space opera, in my mind, is a bigger category, about different things, though there can be (usually is) a large military component.