anyone tried this?

[Blue Scorpion]

Been there done that, it doesn't work on any useful scale; what's more, camera range is severely limited, adding a camera adds weight something you want to avoid with RC. Any camera that will fit, AND relies on radio transmission just does not have any useful range and the frame rate +resolution is piss poor too. To make it work you are looking at larger scale rc aircraft, or very expensive camera equipment and that starts racking up cost and comes with its own set of limitations on where you can fly, frequencies etc.