Pros:

-Exciting storyline
-Well-prepared weapons and resources

Cons:

-Too hard for some of the players even though they are playing it with easy level, especially the last battle with the flying robot.

Conclusion:

It's exciting for some of the players but hard for some of the new players in another words.

Pros:

-New skin
-The map is huge
-Exciting finale with 4 tanks a time for 2 times
-A lot of resources e.g. first aid kit and guns

Cons:

-Sometimes the resources like guns are set in some useless place e.g. the mall in map 3
-Bugs (lack of some invisible wall) in map 2 - You can jump on the tent and jump on the wooden fence and get out of the map
-Bugs (lack of some invisible wall) in map 3 - You mustn't open the gate beside the sport car and just jump over the fence and skip the gate.

Conclusion:

This is a huge map that is set with a well walkpath management i.e. there is a long road but just in a small same place. Besides, the finale is also wonderful despite of some bugs. Resources are too much for the professional ones but benefit for the ones who are not professional enough in playing l4d2.

Pros:

-nice idea
-it really can train
-provided gas can and cola except melee

Cons:

-i have to press the button each time (see charger training and you will see the difference)

Conclusion:

this is a nice idea map which can train the skill of smoker's tongue reflection. however, for the people who want to succeed to do this at 90% in playing with others in other maps online, this just can train at an ideal solution but about reduced 50% success rate at other maps. Despite of it, this is a really great idea to train this

Pros:

-Spectacular views
-Very detill
-I like the way to end Chapter 4
-It's exciting at Chapter 5

Cons:

-Can't load and crash sometimes

Conclusion:

This is an excellent map which is very detill. The storyline has been set very exciting and the views are mind-boggling. This map is even can't be given out any disadvantages.