I was patrolling on Venus in the Ishtar Commons and I saw a line rifle shooting at me from nowhere. I walk up to where it was coming from and there was a hobgoblin, except you could only see this floating fiery glow and its line rifle charging up. That was it. It could damage you, but you couldn't damage it at all. I sadly don't have a video of it, but please comment below if you have seen this too