I played on hardcore and had 5 skill points in a magic missile thingy. I sneaked a bit, launched a missile. Ran back out of side when they approached, started over again etc etc. Untill the guard came so close I couldn't sneak away anymore and attacked him head-on. I did this to pick out every guard one by one, was a challenge though <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />