I've been playing with The Hag trying to do this but found it extremely hard. Higher rank survivors will avoid traps by crouching and using flashlights. Your best shot is do as I did: Start by not placing any trap and just walk 'till you find a survivor (If you are on windows version or find a xbox survivor you can just mesage them and make your life easier). Once you find a survivor stop walking and start turning your camera, if they stop as well put a trap in the groud and start beating it so he understands what you want, if he don't, he will runaway, you may persist or try it with another survivor. Once he activate the trap, hit him once and go look for the next one. After sometime they will notice you don't want to hook anyone and it will be easier to hit them, and you may even farm some blood points (do not forget to let them go, they came at handy, after all). I know, I know, Late guide and system burlation. But in the case you're struggling with this as I was, that's the best method I could think of. Hope it helps!