Left 4 Dead 2 - All 14 maps ranked tier list

In this video I rank all 14 maps for Left 4 Dead 2. Agree? Disagree? Let me know in the comments your thoughts on the list and if you would change anything.
Left 4 Dead 2 (abbreviated L4D2) is a single-player and multiplayer cooperative survival horror first person shooter game developed by Valve Corporation. It is the sequel to Left 4 Dead, and was built using Source engine. It was first announced on June 1, 2009 by Valve Corporation at Microsoft's E3 2009 press conference. The game is available on PC and Xbox 360.

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Maybe the helicopter... Maybe it's made of chocolate