Oh, by the way, did you see Wraith's HomeWorld 1 mod here on the site, it is very very very very cool....
You should try it.
I dont know about the feasibility of HW2 getting modded with the turret animations, but well, he has done a marvelous job, a professional job i would say. I wonder if he is a game dev here, or from somewhere else? But i think if anyone could pull it off he could. He has small things in the HW mod, like resource harvesters doing their pickups from the Asteroids, and healing animations for the Mercy ships (healer ships) very very cool... 
Sorry to double post. But it is Great! YOu should check it out.

-T