Rise of Rome. This mod will start in 753 AD and end in 390 AD (The time from the founding of Rome till its conquest by Gaul.)
Factions:
Rome
Latins
Etrucians
Samnites
Carthaginians
Syracuse
Messina
Veneti
Croton
Gauls (Come in later as horde)
Sabines
Siculi
Raetians
Tarquines (The rebels of the Romans)
It will use a blown up map of Italy.
I have only a miniscule knowledge of modding, but will be willing to help research if anyone wants to use this idea.