Heavy Nova is a balancing mod that doesn’t add or remove anything from the game. It simply balances the existing game elements to provide a long, enjoyable game that flows smoothly. A secondary goal is to provide the best visual experience while watching massive fleet battles. New for version 2, all weapons have been balanced to provide true WSIWYG (what you see is what you get) battle dynamics. The speed of unguided projectiles is directly proportional to the range of the weapon. The burst counts and burst delays are directly proportional to the damage of the weapon. This means the damage you see them doing is more closely related to the damage they actually are doing.
The web page at the attached link has more information, including tables with detailed specifications; as well as a link to download HeavyNova2.zip.
http://letosilvermane.googlepages.com/home