Pros:

Long different enviroment - european like CS maps
Good supply placement
New decals and sounds
Solid panic events and finale
Good length to maps - just about right
Very good lighting and atmosphere
Njoyable campaign
Very good poster
Cant fault the gameplay

Cons:

Some areas look out of proportion ie castle area
Some areas didnt quite flow right.
Few nav issues- as always more valve AI than map itself
Some of the window texturing needs lifting as it looks wrong that low.
Need to kill sound when radio playing music is shot :)
At finale if you stand on the trash bin, infected wont touch you.
Gotta do a widescreen poster!
Some asthetic structural issues

Conclusion:

Ive watched this campaign for some time and have seen it progress steadily. Overall its a top campaign, but to be up there with suicide or bloodtracks etc I think its lacking that little extra detail and refining. Some areas still look at bit blocky or not quite proportional. Some doors just look out of place , some rooms look structurally wrong. I am ofcourse nit picking as most wouldnt stop to look at details but I think its worth saying.  

The gameplay, pickups, sounds, atmosphere are all there though. Good job! look forward to the update

Pros:

Excellent (shame it was late) in the china contest
The witch skin - nicely done
The intro
Lootable corpses
New mechanics to the finale and panic events
New props here and there.
custom sounds and music.
Good map lengths

Cons:

Lacking in detail in some areas
Snipers (although not a con for the review, I just dont like them)
Maybe a few directional pointers in the office block
Some optimisation in places (nothing game breaking)
Possibly some more ammo/supply drops here and there.
maybe some more on screen info

Conclusion:

One thing you cant say is that your maps/campaigns are 'run of the mill'. You always try something new. The plough was a nice touch although Im sure you'll be tweaking it to get the balance spot on.

Nothing felt out of place or wrong, except for maybe a little more detail in places and the odd  column in places :). Im not a fan of the snipers etc as I dont think they fit in, but this is my own personal view and wont mark down for this.

One thing I would suggest is maybe look at the first map and make it a dynamic route map as all those offices would lend them self well for it.

Good job and look forward to the next campaign!

Pros:

Very good detailed buildings
Everything in proportion and believable
Lighting good
Weapon placement is well paced
Love the poster - dont change it
Good displacement work
Believable soundscapes

Cons:

Some texture issue here and there - ie skybox showing on sewer tunnel.
SI get stuck in quite a few places - more clipping needed
Wasnt a fan of mechanics of the end map
Always think its a shame to have to rush through a map when clearly theres alot of nice detail to look at- (not really a con)

Conclusion:

Overall this is an enjoyable campaign and can see alot of work has gone into this.I know how annoying bot navs can be so I wont comment on this, as alot is down to valve coding with the bots.  I personally think it needs a 4th map and possible vary the lighting so that one is more lit up as although in real life if power has gone out in a complex then its out everywhere, this does make a campaign a little mono though if its all dark (personal preferance though).

Theres always room for improvement but never the less great work.