I played through this campaign recently (but don't have it on my computer right now though)...there are a couple bugs I remember:
1-In the mission where you go in the nebula to investigate the derelict Typhon Volantis...after the enemy Iceni frigate blasts your cruisers...only one cruiser survives. The surviving cruiser (I forget its name but it was the Aeolus) then turns into a ghost kind of; what I mean is that you can see it but it isn't solid. You can fly through it and shoot through it and there is no contact. The mission essentially freezes at this point. Your transport that's docked with the Volantis never leaves and the enemy Iceni just sits there (and only fires on you if you get in range of it). I was only able to progress after doing the die 5X method. What is supposed to happen in this mission?
2-In the mission where
your Vasudan wingman Bakhu betrays you
he almost never dies. He keeps trying to ram the Constellation but just keeps bouncing off. One time, luckily, he did disappear and the enemy fleet came in and the mission progressed.