Pros:

-Beautiful first person
-Beautiful world model
-The scope has very fine detail on the model itself
-Replaces the G3SG1
-Sound seems to fit nicely
-A classic

Cons:

-Scope seems a bit too big
-Animations seem a bit stiff
-When a survivor reaches to pick up an item it their hand goes spastic.

Conclusion:

All in all it's a very beautiful skin that seems to fit the game pretty well with a few minor problems. Like the animations... The animations could also fix the bigness of the scope. If at a different angle the scope might not seem so big. I love this skin however so it gets a 9.5 from me!

Pros:

Truly feels like Japan.
Great atmosphere.
Old/New Areas of Japan where shown.
Felt fresh.
Nice and dark like a Left 4 Dead campaign should be.

Cons:

No Katana found.
Finding you're way around is hard at times.
Weapons seemed to spawn in the same spot all the time.
End of the map in some spots is visible (AKA: White area at the bottom of the map)

Conclusion:

Me and my group of friends (AKA My Steam Group) really loved this campaign and can't wait to see more! Me personally loved the rustic part of Japan with the old buildings in the forest to me that was the best part and really gave the vibe of a zombie game. The scenery was good which shows the amount of detail it took to make this campaign and to us was quite invigorating.