ime not shure about this but
i think bani said that from thoes overhead angles his rig gets about 3fps so many people wouldnt be able to use it effectivley. but like i say not sure so u better of askin bani
i have discused this problem with others and have a solution that would alow just about anyone to suport this kind of thing with a very small drop in fps (i predict about 3 to 5). it loses the ability to easily move the camera but has advatages in the performance and the ability to easily implement into the command map + and alow for some to increase the image quailty. If anyone is serious about implemting this and would like to hear my idea how then feel free to contact me