Uruk hai captain

This Uruk hai commanded the 10,000 Uruks at the Hornburg in The Two Towers movie.After the first uruk casualty, an uruk hai soldier on a rock without a helm yelled at the host, meaning to attack the deep.This one was possibly in the same rank as Ugluk in the movies, and one below Lurtz.If he was in the books, he would probably be one rank below Ugluk.