Strangely, the two times I've done the quest it's been a level 30 undead Azunite archer hero, and yes I'm playing BW. The first time it was just the one, but the second time (just now) he was accompanied by three or four Level 28 undead Azunite soldiers, I'm not sure just how many, I died too quickly (it was just me and the pack mule
), but at least three of the blighters.