I just updated my Trolls in Undermountain with this Awesome script:
http://nwvault.ign.com/Files/scripts...07885652.shtml
It's simply brilliant! If you use Trolls in your Mod, you gotta use this!!
Once you get them to 0 HP, they lay down, then, if you have a torch or some fire or acid, they turn into a big fire then slowly fade away.
One of the better scripts I've seen! For killing with a torch, all you gotta do is hold the torch and be near it while it's laying down. While down, it's healing and then stands back up if you don't kill it with fire/acid!