in the event of encountering a witch on expert mode with no shotgun/nobody who can safely cr0wn:
if you or a teammate startles her, shoot them and incap them immediately. this way she won’t be able to kill them in one hit.
this is an especially handy trick if the witch is in your way. if you.must, send your teammate with the lowest health to startle her and then incap them and kill her. quick, easy, and more painless than it would be otherwise :)