Pros:

+Extremely well detailed maps all the way through
+You managed to create many beautiful environments
+ You took advantage of many of the l4d2 specific features
+Generally good weapons placement
+some very good length levels
+Some amazing special effect sequences
+Finale was very creative
+Some well thought out panic events

Cons:

-Generally a little to difficult
-The safe room in the 3rd and 4th level still have tier one weapons
-The third safe room has no ammo  pile
-Weapons disappear after you pick them up
-Some areas need more items
-A few levels felt too long.

Conclusion:

Despite my small complaints this is easily one of the best campaigns out there you can play, its got everything you could want from playing a custom campaign. Its got 5 high quality and long levels and some unique panic events that have never quite been done before. It shows how high quality content the community and create if just given the tools and this campaign is right up there with all the other great campaigns like Death aboard, 2 Evil eyes, Dead city 2, and Freezer burn. The finale sequence was creative and felt it met valve standards and despite being a little too difficult in my opinion and since weapons disappear after you pick them up its still a great campaign to at the very least playthrough at least once. Can't wait for the versus version to come and you've done some great work.
          -Heroman117