:tops: Same here, I even managed to attract his praetorian guard before he ran down so it was just him and my multiplas rifle. There wasn't much left of him after the first volley.
Difficulty you play on is ?
I laid a crapload of mines on the ground, with C4.
Shot him with Archemedies (that just pissed him off, like poking a damn grizzly).
then ran back, he activated the mines.after knocking boone out, then I found after that he was still alive (this guy is insanely strong) and get attacked by him and his praetorians, and then just spam stims and wittlehis health down with my BAR.