Also, everyone seem to assume the laser comes from or near the rifle, when it could come from a much closer team member for various reasons. Easier to conceal both a laser and yourself than a full blown sniper+weapon in shooting position. Alternatively, moving targets.

All sorts of known strategies applicable to e.g Hellfires come to mind (sorry for the dubious reference and descriptions, I recently unearthed old Comanche 3 and Longbow games): shoot timed salvos and light up targets in sequence, shoot blind and hidden then pop up and light up at the last second...