The Black Hole Eruptor is so powerful that it's hard to really classify it as a particular weapon type. What makes it technically a missile is that it has a guidance system and that its damage is not kinetic based .
The Blackhole Eruptor is a missile weapon in that when it reaches close proximity with its target, the weapon actually forms a temporary black hole near the enemy ship. It is frighteningly powerful as a weapon and must be used with extreme care.