Playable, comical, but also messy and confusing

The map looks a bit messy, and the directionality is confusing, but it is playable from start to finish.

The cutscene is purely comical and memorable, I'd give it ∞/∞ for that.

If you are willing to play this map, remember, that it will take really long time to finish this without admin commands.

Really fun and beautiful campaign... until finale.... a wasted potential

Pros:
All Four maps are really beautiful
Random Path in map 1 and 2 actually pretty good, have some replay value
Maps are large, with some item scatter around, pretty rewarding for the curious player who loves explore
While the layout seem confusing but surprisingly navigatable

Cons:
The cogwheel has some collision issue, It may sometimes be stuck inside other props that prevent you from picking and progress.
The sacrifice button remain locked, even I force all three survivor bots to frozen inside the cable car, I can only succeed by smashing the use button and with some lucks

Conclusion:
This campaign may be fun if you got all human player, but is really frustrated if you play in singleplayer (I always have to use admin system to deal with this issue), I could give this campaign five stars, but unfortunately for me, the finale completely ruined all the fun I had in previous three maps, a really wasted potential.

Decent Campaign! It would be even better if framerate could be higher in map 1

Well detailed, seemly complex but surprisingly high framerate in most part.
Balanced gameplay, it would punish players if they aren't careful, but it wouldn't be too harsh to just kill off player, a really good example how to make a map to match up Offical Campaign standard.

Despite I enjoy this campaign, I need to point out the issue, solve these issues would made map even better
The outdoor area like map 1 could optimize better, my framerate sometimes drops below 60
Some area looks too similar, which player sometime would get lost, proper lighting within dark environment would guide the player navigate through the environment.
I really have no clue what is the point for having two modes for the dark city and bright city in map 4, a dark city with some proper lighting like I mentioned above would help a lot for guiding players.

Newest and Greatest HL2 Ported Map

Along with "We don't Ravenholm" and "City 17", This one of my favorite L4D2 ported HL2 map.
Pro:
Original HL2 Style
"Antlion Tank" in the cave
A challenging "Scavenger" crescendo event with two tank!
Unique Finale with lots of generator
A crescendo event during end of chapter 2, fighting horde with "Vortal Combat" music!!
Con:
Length of Chapter 3 is a little bit too long, could be shorter.
Chapter 4 is take too long to reach the finale area, just like above one, it's also cloud be shorter.