Pros:

The layout design is nice.
especially the train part, beautiful.
Pretty fun map to play.
tanks twice in a row quite challenging.

Cons:

not enough infected

Conclusion:

Overall, the map definitely I'll suggest others to play. 

Pros:

Creative.
Challenging. (Especially on Expert mode)
Hordes and SI from all over the direction. (Must have teamwork to watch from ur back, their back, and back to back when fighting in with the hordes)
Creative Number Puzzles. (Not too stressful).
Loves the idea that you have to use gas can to get items or open doors. (feels more realistic as into in real life, u work to get what u want) 
Fair length of map. Not too long and not too short. Once u get a hang of it....it feels perfect.
There's too many I like bout the map.

Cons:

None

Conclusion:

I normally do not give a 100 rating review for a 3rd party map..I don't give reviews at all...PERIOD! .But this map has it all that I'd expected.  Good Job! Do this more for your next map project.