Pros:

Very cool.
Great barricade system.
Excellent recreation of a excellent film.
It's Return of The Living Dead in Left 4 Dead.

Cons:

There are not many however, when playing with bots it can be really annoying as bots shoot through the boards and it defeats the purpose. Also, this is a bit petty but, the music is too overpowered by the L4D music which is quite annoying.

Conclusion:

Great map based on the 1985 horror film Return of The Living Dead. The map is very true to the films and has soundtrack music playing in the background. It's a fun map, however it is a bit short(15 mins) and is a little bit buggy.

Overall this is a fantastic map and i cannot wait for a full campaign. The SBS system is great and it definitely makes this map a must-play. And remember to Send More Paramedics!