Michael Surbrook has down and outstanding job converting most of the major antagonists for HL2 into Hero. His ability in this arena is outstanding. It is on his shoulders I was able to craft the HL2: Escape from City 17 adventure, and for my part I crafted the HL2 characters (Alyx, Barney, Griggs, Sheckly, DØg, Vortigaunt, and Father Grigori).