Don't think Hollywood has anything to do with it. I don't get any hull integrity damage with collisions. I just tried enabling Hollywood damage model to see if I would get any hull integrity damage from collisions.
As is, I have 1.4b, SH commander 2.5, RuB 1.45z, NYGM crew management, SH3 Battery fix, and a number of smaller mods for sound, and sky.
From what Gouldjg wrote, it is a hardcoded thing.....
I thought it would be a simple matter with the zon or zones cfg.