I'm not sure what you have tried so far with regards to the Eldar's Shuirken weapons (if anything ), but I was slacking off at work again and I started wondering if you had thought about sampling rotorcraft i.e. helicopters. (sounds best at 0:45 onwards). If you cancel out some of the the low pitch noises, I reckon with a little jiggery pokery the high pitch tone from the engine and the wickering effect from the disc could make a decent shuirken sound. The shuirkens operate at a very high frequency, but as Mathieu said a monotone is an uninspiring effect. Keeping close to the lore but with some artistic license is the approach I'm hoping for
I don't know if this has been covered.. but the Ork WaaaaaaGh Could it really be ground shaking? I mean it would be awesome to be able to hear a mob of orks over a cliff face in the distance before you actually see them, hearing them in the distance screaming waaaagh. That feeling of impending doom and conflict would be amazing! Waaaagh should be really loud! Also please have the bark system at least as in depth as Chivalry Medieval Warfare!
Can you add some war cries to the factions that can be heard all over the map for added noise and fear factor to the battle...
nobody really want to hear the real sound of weapon in a game in particular the real volume: trust me.
Rofl that would be... something. But hearing warcries in the far distance ( at a lower volume based on the distance) would be pretty cool.