Gnome Chompski

Gnome Chompski is a garden gnome exclusive to the Dark Carnival campaign. He made is debut in Valve's Half-Life 2: Episode 2 and is infamous for earning you the achievement "Little Rocket Man". In the Left 4 Dead universe, he can be picked up by scoring over 750 points in the shooting gallery minigame at the fair and taken all the way to the Rescue vehicle to unlock the Achievement Guardin' Gnome
 * Players cannot shoot while holding Gnome Chompski but can still Melee

Trivia

 * Gnome Chompski also makes a cameo on Valve's Portal site during the Christmas holidays.