If it's like other smart ordinance that is self guided, it requires a designation of some sort. This is often done with a laser. Snipers work in tandem with a spotter already. Their job could go from spotter to laser operator. Or it could just be a function of the actual shooter. Keep your scope (and laser) on the target until impact. Actual the recoil would probably screw that up. I think you would have to have the spotter manning the target designator.