public IEnumerable <ShooterWithStageAndCompetitionPointsShowModel> GetShooters()
 => ShooterRepository.GetStageAndCompetitionPoints(stage.ID)
 .Select(x => new ShooterWithStageAndCompetitionPointsShowModel(x.Id,
                                                                x.Position,
                                                                x.Name,
                                                                x.Surname,
                                                                x.StagePoints,
                                                                x.CompetitionPoints));