I'm on the apocalypse mission of the Dread Lords campaign, playing under Dark Avatar. I hit this issue where the AI has a ship that isn't capable of being destroyed. I can throw everything I want at it, and it always resets itself to 9 HP (It's a freighter) after taking damage. It's pretty much decimated a fleet that was finally ramping up to be ready to fight off the dread lords - I was able to sacrifice two or three medium-sized ships to destroy a single freighter, so it was costly, but I was finally beginning to make some headway. Now I cannot possibly finish the campaign. That lone ship has cleared the way for troop transports to take over my previously well-defended planets.

Anybody else run into an issue like this? Do I need to totally restart the mission? If so, I'll probably just stick with random scenario games, as this is the second mission I've seen an invincible ship. Luckily in the first, the goal was to take a drengin planet, so I was able to just race for it while that ship ate up all my defenders.