Enemy ships are stronger in Sectors 6-8.Many events tweaked, making more options actually worth considering (e.g., the black market weapons trade is far more reasonable).You can no longer bypass enemy Defense Drones with Hacking, and Hacking is much more expensive.Kestrel C and Federation B have been redesigned in an effort to make them a unique experience compared to other ships.Best weapons more expensive, Flak I less accurate, Flak I & Halberd less common. Weak weapons made relevantly cheaper or otherwise improved.