The Long shot special event is fairly straightforward and most people are aware of how it works. Everyone has probably seen the “Andy Anderson found a gap in the home sides central defense scoring with a long shot” message pop up. The higher your player’s scoring and set pieces are the better chance he has to score on this event. Any player can score off a long shot, but due to their scoring skills your forwards are probably the ones most likely to.
That is also why some consider set pieces to be more valuable on forwards than on other players.
based on an article by Elgard