Chaingun said:
I guess Rome will be significantly stronger than Carthage in the game for the simple reason the AI needs to be guided towards historical results, or Paradox will have a huge riot on their hands. If Rome gets annihilated by Carthage, everything will be completely different from history, this in a game called "EU: Rome".
It wasn't a impossible scenario for Carthage to annhiliate Rome - Hannibal besieged Rome and if his brother Hasdrubal had met with him and brought siege engines, or if mainland Carthage had sent reinforcements instead of cutting him off, it would have been GG for Rome. Pyrrhus of Epirus had also nearly come to destroy Rome in previous years, the Romans again won just barely, and came to the verge of complete defeat.
Contrary to popular opinion Rome was a fledgling state during the Punic Wars - Macedon, the Seleucid Kingdom and Carthage were the main powers in the Mediteranian until the battle of Pydna where Rome exerted its strength and showed it take on the Macedonian phalanx. It wasn't until the complete destruction of Carthage until Rome was taken seriously by the Diadochi (Alexander's succesors).
It was the arrogance and political disunity of Carthage which lead to Rome surviving the Punic Wars, not military power, empire or economics.
The Romans learned a lot of lessons the hard way through fighting Carthage - including how to combat phalanxes, survive elephant charges, deal with light cavalry (Numidians), fight on the sea (stealing the Carthaginian Quinrereme design and inventing the Corvus to board ships) and pick their fights wisely.
Before the Punic Wars Rome was a fledgling state of no signifigance which was considered on par with the many dozens of other Greek city states nearby.