You are looking at the Earth 18 Civilisations for CivGold, version for Warlords - long-awaited map that caused a great stir among the crowd. This version is exactly the same as non-Warlords version except for some leader and civilisation changes.
For the changes see:
http://forums.civfanatics.com/showthread.php?p=5018970#post5018970
To install:
Place it in Firaxis Games\etc.\Warlords\PublicMaps folder. Remember:
Thou shalt not place it in your Vanilla Folder or thou shall be banished from the light of the day and I shall personally curse thee.
For the changes see:
http://forums.civfanatics.com/showthread.php?p=5018970#post5018970
To install:
Place it in Firaxis Games\etc.\Warlords\PublicMaps folder. Remember:
Thou shalt not place it in your Vanilla Folder or thou shall be banished from the light of the day and I shall personally curse thee.