Pros:

Optional lighting was an interesting mechanic.
The swing bridge event was very cool.
Good spread on the ammo - I kept going from weapon to weapon throughout the campaign, ading variety.
The elevator and the train jump scares - I usually don't like things like that, but those were very well set up and fit in with the map.
The custom graffiti and adverts a plus.
The custom trains in general really added to the map.
The finale didn't feel to cramped or open, just right.
The escape vehicle being a train was cool. One dosen't see that often.

Cons:

None at all.

Conclusion:

I agree with the others. This is one of the best campaigns I've played in a long time. Good, well-laid-out, detailed maps; interesting mechanics; and an impressive finale. I recomend this map to everyone.