I made a few more ships, along with modifying ships that I had previously made. The scale I used for each of these is about 1/2 of the original size (1 block is 1 m2, so 200m long ship is ~100 blocks). This is pretty constricting when trying to make "medium-sized" ships, as an SDV-Class Heavy Corvette is around 450 blocks long, and a CCS-Class Battlecruiser ends up being around 750 blocks long and tends to lag quite a bit with more ships around that size. Going any smaller than this, however, makes it hard to detail "smaller" ships, like frigates and destroyers.
Also, each of these ships has an armament very similar to the actual counterparts.
UNSC Paris-Class Heavy Frigate
UNSC Halberd-Class Destroyer
UNSC Strident-Class Heavy Frigate