Valve has shown the first footage of the Fairgrounds campaign coming to Left 4 Dead 2.
GameTrailers TV got the scoop, and interviewed Gabe Newell and Chet Faliszek about the area.
"That's almost like our fantasy level, if you like," said Chet Faliszek. "A merry-go-round starts up in the middle of a zombie apocalypse."
As well as Fairgrounds footage, GTTV showed new Infected types Charger and Spitter in action, plus the new incendiary ammo burning some undesirables.
There's also footage of the new L4D1 campaign, Crash Course, which will be free for PC owners next month and 560 Microsoft Points (£4.76 / €6.72) on Xbox 360.
Left 4 Dead 2 launches on 17th November for PC and Xbox 360.