The Latest relase from Musketeer925's Scenario-Making Mind:
A multiplayer game of the Battle of Thermopylae.
300 Spartans with 1000 Hellenic reinforcement must defend The Pass of Thermopylae against 50,000 Persians. (Not all at once, there is not very much lag. There is no more than 500 units on the map at a time.)
1. Click Download file.
2. Download to somewhere where you can find it.
3. Extract from .zip file.
4. Place scenario in My Documents/My Games/Age of Empires 3/Scenario