Add Coloured Smoke to mark ground targets for Pilots

Im seeing a common complaint coming out of the Alpha that its too hard for pilots to see targets without 3D spotting. Maybe a system of being able to mark a fixed spot for only pilots to see (On a cooldown) or being able to throw a marker smoke (sends up a thin stream of coloured smoke, so it marks the position of infantry or a tank but doesnt obstruct the vision of the ground troops)