You haven't been around long Turambar, so I'll let you in on a little secret. While it usually is possible to get enough actual Greek mythological names to name new stuff according to convention, it becomes increasingly hard to differentiate between ships. It's an order of magnitude harder with Shivan and Vasudan stuff because the names left are either trivial or impossible to pronounce (Hatshepsut was a stretch for a class name, and :V: decided to use the obvious Ra for the never-used Vasudan escape pod). When it comes to weapons, none in FS2 follow that convention except for the Prometheus and so naming them whatever you like is fine.