Pros:

-Just like the Verruckt from COD
-Fun and a challenge
-New zombie skins
-Survival which is like the real zombies

Cons:

- Door is hard to open and takes FOREVER
- Easy to die if you aren't against a wall
-

Conclusion:

Overall is a great remake and is a 10/10 due to the fact when i got L4D 2 this was the first map i got and it was great. Even for noob's or C.O.D. lovers