I can't give you a definitive answer but just offer you what I recall was in effect many years ago in FAI F3c heli comp. I believe the "team" is comprised of three main members and one alternate [who did not participate without a member dropping out]. The reigning World Champion was invited to return as an individual competitor but did not factor into the cumulative team score. I think it's somewhat similar in F3a but there may be variations since I believe there was an active fourth USA competitor but I do not think there is a situation of having an advantage from more team members. That would be unfair for sure.