Turn down game volume

Heroic or story version? Cuz heroic Omnigul is way harder and trickier to take down in that first room than in the story mission Omnigul. I wouldn't even try farming heroic strike cuz it's just a pain in the ass and you prob aren't getting the streak buff anyway.

[spoiler]Omnigul is female - as are all wizards/witches in Destiny[/spoiler] I don't know what the theater method is. The normal method is when you first see Omnigul, tether her and attack with Raze Lighter or the fastest DPS you have. If you are tethering and she gets away, maybe try Black Hole. She dies pretty quickly. Then let the adds kill you and do it again, over and over until you have the drops you want.