Nice work

Was a fan of the original - nice to see you keeping thingts up to date.

Pros:

All original locations
The Golden Gate Bridge !
Tight indoor locations and streets as well as incredible views and open spaces.
Zombies at the beach house !
The streets of San Fransciso !
The cell house at Alcatraz !

Cons:

A true classic

Conclusion:

A magnificent piece of work with many original locations and scenarios.  Lots of fun evemts and original ideas.  Good balance of weapons and supplies.  You may need to tweak the graphics settings on lesser systems to get a good frame rate.  Play with a good team and you can make it.

Pros:

Unique map layouts and locations.  A logical and well thought out there and back campaign with the building frozen on the way down and in flames on the way up.  Beuatiful smoke, flame, ice and frost effects, running puddles of ice as the frozen building burns.

Cons:

The abominable snowman tank is gone.  I recommend the author of this campaign get in touch with some of the many skin creators on this site to solve the problem.

Conclusion:

This campaign was one of the very first and greatest mods for L4D2.  It looked to me that as various updates and patches to the tools and engine were made, this mod began to have issues that, especially once the flames in the office area where you have to climb over the cubicle partitiions to escape became invisible it was impossible to play.  I was able to play it through from end to end with no glitches and reasonable bot behavior.  The return of a classic and highly recommended to skilled players.  This can be a real bear on the higher difficulties and calls for quick thinking and good teamwork.

Pros:

A richly detailed and dressed environment that is totally unique.  It's not just the same elements mixed around.  The locations, and overall design are absolutely wonderful.
I have only been able to get halfway through so far but I rate this campaign as one of the best.

Cons:

The route and what is required can be hard to find.
The bots need to be coaxed a little now and then.

Conclusion:

Great work that stands head and shoulders above most others.  Highly recommended.

Pros:

Unique locations and buildings
Detailed set decoration
Varied environments from wide open plazas to sewers

Cons:

Nothing stands out

Conclusion:

This is a first class campaign that's as good as any official one.  It shows a lot of thought and attention to detail and was a pleasure to play.   One of the best add-ons out there.

Pros:

Interesting map layouts, routes and panic events.  A lot of unexpected twists and many different ways through.  Incredible attention to detail, every room in the mansion is filled with interesting objects.  The particle effects in the twilight woods are quite pretty and distract you from the next trap. 

Cons:

There was one spot near the mansion right after the helicopter crash (by the gate with the yellow signs) where you can get stuck in a seemingly open space.  Since the map routes are complex and varied, you have to be careful not to outrun the bots in single player or you will find  yourself alone with a hunter.

Conclusion:

This is a professional quality map that the Valve team would have been proud to have produced themselves.  Rich, varied environments with incredible attention to detail and many interesting tactical situations.  Bravo!