Played around with this mod for a while, and I have a few things to say. For one, it's not too bad for what it is. The ships that aren't reskins seem to do nicely. I used a few, but it's not my cup of tea. Because of this I'm mainly speaking from going against them. The ones I did use seemed okay. Very fast, but fragile. Shields worked well in those cases, but it felt more like just high tech frigates/destroyers with less armor and more speed. Not useless, and not broken. I tried to do a themes run with nothing but Bushido(or really Takeshido which isn't renamed yet), but I noticed they lack any capital ships and anything that can take a hit at all. Not really their style, I get it, but it made multiple fight far more difficult than they had to be. Either way, not an issue. Just something I noticed.
However, I did experience one thing that is out off balance... As mentioned earlier, Doom with hull regeneration. This is fine to use as the player, fine to go against as the player, but broken. Slap on some extra PPT, and nab up some skills for it, set up your doom for flux dissipation, and unless they literally kill you in one go, you will not die. It nullifies the risk of overextending almost entirely. You can go in and get a kill confirm and take 50-80% hull damage, then just retreat while laying mines to keep them from pursuing, then just stay cloaked for a while and boom, go ahead and take another risk. If you are not dead outright, you can more than likely get out of it. Seems pretty unfair on such a large ship. It doesn't feel broken on the other ones since you can't take an so much as an Atropos or Reaper to the face and move on. They flat out kill you. So basically only the Doom seems out of balance. As always though, if this is your intended point of balance, that is okay and I will leave it at that.
Overall this isn't a bad mod and I did enjoy using it. I probably forgot to mention a few things, but oh well. I will keep using this mod and give additional feedback if I think something is off.