Back when I was playing with my Aureal Vortex 2 card, locating enemies via sound was easy peasy through footsteps. That system (and card unfortunately) is now long gone. On my current day system, sound location doesn't work nearly as well, I can't tell if something is in front or behind me, I have to move my head (in-game) to figure that out. I really miss my Vortex 2 :-(.