During PAX 2009 Valve presented a new boss zombie and the Dark Carnival campaign of Left 4 Dead 2.
New Left 4 Dead 2 screenshots from the Dark Carnival campaign.
As expected a new special infected from Left 4 Dead 2 has been unveiled at the PAX 2009 in Seattle. The Jockey, as the new boss zombie has been called by the developers, jumps on the survivors' back and affects their movements. He is for example able to steer the player into a horde of zombies. But according to the report at Half-Life Portal the player still has the chance to fight against the Jockey's manipulation.
In our gallery you can find some pictures of the Jockey and the Dark Carnival campaign. There also are new videos that show the new elements of Left 4 Dead 2, too.