I've seen Melser play; he doesn't even use a monitor. He visualizes the map in a detailed representation, entirely in his mind. He has a biological wallhack; his godlike perception highlights all enemies light years away. His eyes are closed as his mouse swerves gracefully across the table, making immaculate twitches as it passes from head to head. The bullets that escape from the barrel of his gun are surgical; each one delivering a killing blow between the eyes of his opponent.