The SPARTAN Laser doesn't really have to be creative. It's a "Fricking Laser" that's attatched to the "fricking shark's head" (analagy for a SPARTAN

The spiker doesn't really have to be creative either. Think, the Brute Shot isn't a very creative name either, but you don't see anyone complaining about that, now do you? Spiker is fine. Although I would like to know what kind of projectile it shoots, i'm not totally sure about that one.