everything made my human minds is a tool. artillery is no exception.
a gun is a tool just like a hammer, a drill, a paintbrush, a glue stick, etc. some people have favorite tools.
personally I have a carpenters pencil my father left behind on the job site we both last worked on before he died. it's my favorite pencil and I only use it on personal projects I wish he was around to help me with. in a sense I feel like he's there with me still, even all these years later.
I know of people who have favorite guns, because they bonded with their fathers over them while hunting.
having an emotional connection to a tool isn't wrong or unhealthy.
that said, having an infatuation with the killing power or firepower of a gun isn't healthy. knowing your tools is one thing but obsessing over how many rounds your gun can fire and proudly treasuring it only for that is sick.
guns are tools to be respected, and like any other tool you hold with your hands, it starts with how you perceive it in your mind.