Feel free to grab my newest script "Plunder&Prosper".
The idea of this script is simple. Nations must be defeated one after another to unlock further ages.
For example - if you start a scenario with 8 players, "ancient" starting age and "information" ending age, all the players will strugle in ancient/classical until one fall. After that happen Medieval Age will be unlocked. After next nation destroyed - next age and so on. Actual "information age" will be availabe when only two players remain.
But that's just one example. Script is calculated to work regardless of number of players and epochs set in scenario.
1. Download and uzip the script.
2. Put it into:
Rise of Nations\scenario\Scripts\Plunder_and_Prosper\
3. Prepare a skirmish scenario
4. Select "Plunder and Prosper" in script section
5. Launch the game