Amazing Portal 2 easter egg in Left 4 Dead 2 custom campaign

[Leo Leonardo]

[QUOTE=KingKombat;30926474]nofunallowed.jpg

[editline]5th July 2011[/editline]

Had to be after, all the textures look directly from the game.[/QUOTE]

I remember playing the campaign way before Portal 2 was released, but I think that was a real early beta sort of thing.