You get 1 point for every phone contact, 3 points for every CW or digital contact. You get bonus points for all sorts of things. But if you want a high score you need people in the chairs in front of the transceivers and making contacts all 24 hours of Field Day. And General or Extra class license to compete. In fact you don't need a license at all.as long as a control operator is on duty to supervise the operation.
Field Day Looks Like This
With Lots of the old Eyeball QSO's