The greatest RTS unit of all time, determined by democracy

PC Gamer has launched a 16-unit tournament to determine the greatest RTS unit of all time, with readers voting over two days until Sunday evening before quarter-finals begin early next week. Competitors include the Peon from Warcraft 3, the Mammoth Tank from Command and Conquer: Red Alert, the Petard from Age of Empires 2, and the Psyker from Warhammer 40,000: Dawn of War.