Pros:

-Great size with beautiful environment
-Everything has frost to match the environment
-Large amount of room for movement with a fair set of items available in different locales
-Love the extra screen frost
-Well designed snow storms that give a perfect white out at times
-Ice feels right, bonus it is included!

Cons:

-None to think of, haven't run into any problems.

Conclusion:

Fantastic map that has a great bitter cold feel, really wish it could be made into a campaign!

Pros:

-Fantastic Detail
-It's the Chief!
-Proper Arms

Cons:

-Wish there was some phrases of the chief

Conclusion:

Great addition to your Left 4 Dead Squad and it is the Master Chief!

Pros:

-Entering every room was a pleasant surprise
-Had some great humor in the style
-The house itself was well designed and interesting to maneuver throughout
-Had some nice extra items to press
-Fair amount of survival items
-The size of the map felt right and AI moved through it without problems

Cons:

-Some rather weird viewings on the TV screens

Conclusion:

Fantastic map, where everything in it performed well. Turning on the power before hand was an interesting addition and everytime you enter a differing room it feels special. Had some great humor within it and AI performed well, give it a try!