Pros:

-Unique
-Challenging
-Organized
-Looks Professionally done

Cons:

-I wish you made more of these

Conclusion:

my favorite campaign, it has challenges and gameplay no other campaign has, and i am playing this campaign non stop with all my l4d2 buddies. please please please make more of these campaigns, this is just brilliant!

Pros:

very fun
nicely done cinemetography
sufficient amount of detail
good amount of special infected
unique escape to win the game

Cons:

if only there were more maps like this

Conclusion:

definetley a map you want to try