Pros:

-Nice Song!
-Amazing landscape, so much contrast to what you usually see in L4D 

Cons:

-Framerate and sometimes even crashing when too many infected are on
-Song isn't on repeat :C

Conclusion:

A really good map, I just cant play it because L4D crashes when i get to the later stages, when more infected come in

Pros:

Awesome campaign
cool areas
great detail

Cons:

too many crescendo events, like that one literally about 30 seconds away from another  
the sign that says that the helipad isn't safe is kinda hard to notice
some insta-death spots are a bit hard to notice, like the broken stairs and the helipad.

Conclusion:

Great campaign, creative, but its a bit to hard when it comes to crescendo events and insta-death spots