Pros:

 - Original design
 - Non-linear
 - Contained a large amount of creative inserts
 - Lengthy levels
 - Didn't feel boring or unnecessarily long
 - Cable car!
 - No force-fed path

Cons:

 - Many errors, especially on the last two maps
 - Zombie glitches, appearing and disappearing 
 - Finale cans glitched - sometimes weren't acknowledged, sometimes over-acknowledged. 
 - Finale difficulty could be bypassed via collecting cans before beginning event 
 - Too many drops 
 - Tank / Witch spawns are predictable 
 - Cable car door glitches > when you close it at the middle port without actually leaving, door wont reopen

Conclusion:

I played this campaign with two other people on Realism Expert.

Firstly, positive. I loved how original the designs were - and they appeared relatively accurate, but were not bombarding. The little education lessons were beautifully inserted, I liked the fox one. Although it took a while to reach it, the cable car part was fantastic. Very unique. There were also many path options available which became handy when trying different strategies - usually resulting in a rush. 

There were quite a few bad sides, however. I noticed many ERRORS appearing throughout the map which were witnessed by everyone in the game. Zombies also seemed to die, but then teleport behind a survivor and reply the dying animation. For the finale, my team found it easier to collect the cans before starting the event, which resulted in us dodging all hordes and tanks. We noticed that the cans did glitch sometimes, and wouldn't be counted. Even though we did the hardest possible version of your map, we all still agree that there were far too many drops. Pills were more abundant than Japanese themed items. Since it WAS realism expert, we didn't complain too much, but on an easier setting, the course wouldn't really be that challenging. Lastly, tanks and witches seemed to consistently spawn in the same spots. This didn't always occur, but it occurred enough that we were able to take necessary precautions to avoid or kill it before it has a chance to do anything.

In the  end, this was a good map, better for weak to moderate strength players. For more professional players, ranking it up to R/E would be necessary to feel challenged. There are still many glitches and errors that need work, but my list of con's should not deter you, the0rthopaedicsurgeon, this is a recommended campaign.