I definitely think that there should be a rail-gun. I always wanted to mount one on my liberty cruiser. Just to sit back at 5k and fire at ships, leaving me invulnerable. *sighs* I assume they would take ammunition, tho, deuterium is not energy. You could also use depleted uranium.
I am a long-absent Supreme Commander, Executive Commander, Grand Admiral, Fleet Admiral, and Captain in the mighty Hellfire Legion. I have returned, and am on an urgent mission from Drake Thastus to return the Legion to its former glory, and to claim the galaxy for its own. Only then will I be able to rest.
RP Story (Still deciding whether or not to finish)