Quick recap for those of us who don't have the mission names memorized: in Paving the Way, you have to escort to GTC Galatea through an asteroid field to the Beta Cygni jump point, where it will fold out. Its weapons have been crippled by enemy bombers and there's no time to make repairs, so it's wholly dependent on you and your wingmate for protection from the asteroids.
At least, that's the theory.
In practice, the Galatea's turrets were fully operational, and after about a minute of trying, and failing, to reach asteroids before her gunners dealt with them, I just parked myself a few hundred meters to port and watched the lightshow. She folded out with 89% hull integrity left, most of the damage from Shivan bomber runs.
Now, it's been a while since I played vanilla FS1, but I'm fairly sure the Galatea's turrets aren't meant to be working on this mission...