The melbourne_coop.zip file you have requested: Maps / Single Player / Melbourne - 87.92mb is not available. Perhaps try browsing all files for the game Battlefield 2 and upload any files you want to share or are missing. This is the only information we could locate:
Here's a BF2 custom map by BierPizzaChips. It has desert styled islands with plenty of places to explore. Read the ReadMe in the zip archive for more details.