She's easy ... We actually find her the easiest part of crota. Here is how 3 left 3 right One from each of the three runs in lures out the witch from each side, the remaining two take up the boomer platforms with fire weapons kill witches. Next one person each side runs in kills shriekers good if they make it out, OK if they don't as long shriekers die Now wait for her song to start. You now have 30s to kill her the advantage is now though she remains stationary ... Run in, rip her a new one with fire rockets, pick up team members stand in middle activate check point Job done