I have this great and pressing need to seriously lay down some oppressive fire on you!!!
Now what was the question/comment/rant/rave/concern??? Oh right, destroying an ISD..... I'm sorry, Imperial turncoat. That is classified information!
On a serious note, I think that was a in-game design for that peticular game. I've blown up ISD's (on X-Wing Fighter) simply by taking out the two shield generators up top and then killing the bridge. That usually rendered the ISD incapacitated. And if I really felt the need to reduce it to cinders, I would go ahead and keep firing on the ship until it exploded.
Perhaps the same tactic could be applied in this game. I never really played it. When it comes to gaming... well, I am not much of a gamer. I need the game to be set on easy. I know, big wuss here. But easy is plety challenging for me, thankyouverymuch! Of course I was also known to cheat like hell, too. Going into the system profile and initiating Yoda mode (much like "god mode" in most other 1st person shooters) and Unlimited ammo.... well, I am unstoppable. Why, I was even know know the fly directing into TIE FIGHTERS just to kill them off. With Yoda mode, I am invincible!
But seriously, try destroying the generators, then the bridge and then see where it takes you.
- Bill