Maxine boss in perdition?

Ok, I have seen this woman twice now, I would scan around the map with tab and all that in perdition rock and twice now I have seen the name of Maxine (insert last name here, cant remember it). Who is she and what are her normal drops, skill caps?

I tried both times to get to her but for some reason whenever i ever got even REMOTELY close she would seem to run like the wind or run into a huge crowd of drake/phantoms/flesh so i would try to go in and my whole 8 group would die.

Anyone got some info?

She's a Ranger boss and you can capture Quick Shot from her. She likes to wander pretty much the whole map, so take your time and you'll eventually find her. When you find large groupings of spirits, you know she was by within the last 1-2 minutes.

Well lucky you for spoting her triedto find her 4/5 times now and cleared the rock twice and still never seen her.