Pros:

- The idea of a garbage dump I like and I think it  is a unique idea

- The map seems a little small but as you said it's your first map

- Personaly I liked the way everything played and I enjoyed the map

Cons:

- The vpk clearly doesn't work

- The map lacked throwable items

- There was not enough special infected spawning

- The bots couldn't move very well through the map
that being said I died twice while playing because the bots didn't know how to rescue me 

Conclusion:

The map was alright despite I had to get gcfscape and extract the map from the files, just the main thing here is the vpk needs to work or what is the point of uploading the map if it can't run when added into the addons file so that needs to be fixed right away all other than that I would say atleast try the map