You dont hear Eldar because we possess grace, we glide over the world of the physical and we do the world of thought, our touch light but deliberate. Whereas the rest of you stomp and clomp round like a herd of stinking beasts aimlessly and ignorantly crashing through everything. Grav lifts DO make sound... least they do on my screen. I hear the lifts I immediately stow my Cannon and leap over the railing. They also kick up a lot of dust when they move on some maps, as do orks. I've been hearing that too... you dying, calling for help, more shurikens thudding into you, your last futile breath. Seems to happen over and over again too.