Pros:

- Highly detailed map; I couldn't find any texture or hitbox errors
- Very unique events in the campaign, like having to restart an elevator or a round ending not in a safehouse (on a train instead)
- Custom character dialogue and voices on the radio
- Campaign doesn't copy tasks or recycle entire rooms from other maps, like other add-ons I've seen. It's pretty much entirely hand-made

Cons:

- Loading times between maps were substantially longer than any other map I've been on; even on single player
- There were far too many special Infected on the maps; on the first one, I counted 11 Boomers. Christ, what is this, the South?
- Health kits and spare ammo are probably the most scarce items in the campaign. The kits beyond safehouses  were almost always just one or two. There was also only 1-2 adrenaline shots or pills in the same place
- There were a heap of dead ends in the campaign, where there's a large open space that seems promising until you realize you're going nowhere. Directional arrows would help.
- Not really a con, but your voice acting could be better.

Conclusion:

It's extremely detailed and entertaining, but still requires some work. I wouldn't classify this as an official-worthy campaign unless it had some tweaks.