Woot! Just soloed as a 61BM Hunter, Drill Master was 62 elite, with three epic pvp armor and Field Marshall's Bullseye.  Pulled and killed one by one all the adds except warlock in the back. Dropped rapid fire then pulled with hunter's mark/aimed shot into frost trap,sent in pet with beastial wraith while spaming arcane/aimed shot when reset and did one Scorpid Sting don't really know if it worked or not, healed when pet needed it (50%health) pet died at about 20% on Drillmaster kited and ran through with wing clip droped a frost trap and waited for arcane shot to come back (no mana)he died in my arms (Raptor Strike) with about 30%health left on me. Oh yeah when ever pet lost aggro nailed him with Conncussive Shot and kited until pet took back aggro with Growl.