The music was loud, but impact echoed far beyond the fair grounds. Armstrong MetalFest’s 16th year reached new heights, drawing the largest crowds in the festival’s history for two unforgettable days of world-class heavy metal music, camping and community in the North Okanagan. “They didn’t just fill Hassen Arena. They walked our downtown, grabbed coffee, filled our restaurants and stocked up at our stores,” said Patti Noonan, executive director…