[AGoetz]

Unless someone is going to go to a lot of work, of course this mod will be unbalanced. Even ignoring the power of the Ancient Races, the differences between what the various races have available will add up.
For example in an older game (as Gaim) I captured a bunch of Vree tech, enough that I could research their Heavy Antimatter Weapons line. I looked at the results, compared to the Particle Concentrator I already had and stayed with the PC - longer ranged and it was so much cheaper that I ignored the slightly higher damage and smaller size of the Vree Antimatter Cannon.
As it currently is, no-one has more choice than the EA for weapons (for that matter, does anyone else have a mine clearer that can wipe out 20 mines per use? 5 of these on a ship and that 100 strong mine field is gone). Races with fighter mounted missiles have a huge advantage in battles over those that don't.
A weapon that is definety broken - the HARM Missile. A single hit from the mark I variety will eliminate the ship from the rest of the battle as it's weapons will not recover before battle timeout occurs. A human designer will make sure that there are other missiles launched first to absorb the PDF.