Nothing relevant.
Please do not address insaneHoshi, check his playercard and you'll see what is driving his responses to all allied changes.
David I think that this change could be great, eliminates the need for fighting positions on certain areas but it's also easy to be abused if it was a passive ability that functions just like the FP RNade.
If it was to be implemented it would have to be something like the Brit upgrade from vCoH.
Great idea though, very outside the box.