Pros:

-All the achievements you can get
-very good for testing your skills with a tank and other special infected
-the underground door way is very cool
-well set out

Cons:

-it is hard 2 get the man vs tank achievement but with all the other achievements it doesn't really matter
-the bots some times try 2 shoot the witch

Conclusion:

It is a very fun map with awesome rooms 2 test your skill in, it lets you practice killing lots of special infected
it is really really cool
I give this a 96 rating

download it if you like killing lots of infected in one room!!

Pros:

*Combining 2 best games ever
*the hunters/tanks are good and challenging (just the right amount)
*it was like running through Half-Life 2 all over again
*the music was a nice touch
*the best map pack i ever played
*VERY AWESOME ENDING AT THE TRAIN STATION!!

Cons:

*couldn't find the combines (but i was running most of the time)
*found a few dead ones

other than that nothing

Conclusion:

it is an awesome add-on combines a bit hard to find but
Overall VERY VERY AWESOME
everyone needs to download it!!!