The randomness is much better than in MTW, but still not very good IMO.
The movement of armies for example is pretty random, with different result if you save and reload.
But if you look to the campaign as a whole, you know nearly exactly what's going to happen.

-The Julii & Britannia conquer all of Western Europe, and both can't pull off a decisive victory over eachother.
-Either Pontus or the Greeks stake all of Asia Minor, just to be driven out by the Egyptians within several decades.
-Macedon takes out Thrace and often also Dacia.
-The Brutii take Greece & Macedonia.
-Carthage and Numidia fall to the Scipii.
etc.