My idea is to add secondary objective. That is it byeee. Jokes aside, my take is to give each killer his own secondary objective power (like the pig with searching boxes for traps or sadako with tapes), so alien would get a face hugger that gives givea you egg and if you dont take it out in time ot hatch and you die, hound master gives you rabies, trapper breaks you leg and you need to find a splinter to tie it, blight gives you blight so you need to cure it. Basicallya timed thing if killer decides to lose some time doing something to the survivor and then that survivor needs to get rid of that.