The greatwall64_1.1.zip file you have requested: Maps / Conquest / Greatwall 64 - 143.88mb 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:
Greatwall 64 is a Battlefield 2 map from Euro Force imported into vanilla BF2. It's the same map, only with more flags and custom vehicles.