They're really not. Both are used for targeting, but operate on different principles, which I explained above. If you try to treat a gunsight as a lead indicator all you'll hit is vacuum. So it's kind of a big mistake to make
I can confirm that
It's a change from the Standard Freespace Gameplay, but it works IMHO better.
Anyway, a picture would be helpful ?
6 is the Flight Path indicator: The direction you Viper/Raptor is actually flying. Should never be over a Big Ship or an Asteroid, except you want to ram it
8 is the Gun Sight: Place it over the Target.
It a detail from the "Diaspora\Data\Info\HUD reference chart.pdf"