A small, okay part of a big, not-okay piece that didn't work out the way I wanted it to...to which I say, I shall try again.
I like Left 4 Dead 2, but I loooove Left 4 Dead. Why do I like the first game so much more? Probably because of the characters, from the infected to the protagonists. Somehow Zoey, Louis, Francis, and Bill of L4D are a bunch of charmers; we know next to nothing about them, yet they've got distinct personalities. Their L4D2 counterparts simply aren't the same. Dunno.
But the Witch! The Witch is just so damn cool.