Enkaar, the Hive weapon master, is hiding in Hellrise Canyon in the Tangled Shore.
Hunt him down!
"Time to hunt us a Hive weapons master and put an end to whatever he's cookin' up. This is where you get to be a hero, and we both get to learn a little bit more about things best left undiscovered. Careful out there, you'll be alone, and the odds'll be stacked. Hope you make it back." –The Drifter