As the title says, I filled up a lot of the empty space with cannons and power systems. The cannons deal an a little over 25,000 DPS, which I feel is a little over-powered, as it can take down a pirate stations shields in just a few seconds. The balancing factor of this ship is obviously its defenses; it is incredibly powerful for its size but it can't receive what it can dish out.
In response to earlier comments, I won't be making this ship bigger as, according to all the canon diagrams that I've seen, the Defiant is 120m long (my Defiant is 120 blocks long) so making it larger would make it not to-scale. Also, I am aware that all of the drawings of starfleet ships are white but when watching any of the shows, you will find that starfleet ships (in space) do in fact look grey.
Also, all the interior rooms that I added are listed on the memory-alpha page on the Defiant's decks, so removing any of them would defeat the purpose of what I'm trying to do: I don't just want some ship with no interior that looks on the outside like Defiant, I want the Defiant, interior and all.
