DAMN, that's awesome! :-D You could do stuff with verticality where your vision cone gets bigger or the DOF gets less intensely blurred as you climb to a higher vantage point. The camera could dolly upwards and move forward along your LOS to reveal more of the map when you point your cursor further out, as a way to peer…
Thanks for your input! I think I've solved most of the issues you raised in this update. I added a blur to the mask and a fall-off to the cones to help readability. I also swapped the blur effect with a DoF effect. I updated the webplayer build so you can try it out if you'd like.