very good scenario with strong AI ,
civilizations must be respected to scenario take effect:
player 1 => it´s your choice.
player 2 => hitites (AI)
player 3 => carthage (AI)
player 4 => greece (AI)
The settings are by default what i have said.
Normally it is p1 and p2 vs p3 and p4 , but you can change it if you want.
Put hardest level to have real challenge.
Good luck and enjoy it !