Just thinking on how I'm going to make the campaign play as realistic as possible during the Persian invasion so I'm just wondering if that's going to be posible. For starters, the first intial invasion would happen in 490BC, during Darius reign, where maybe 2 or 3 full stacks would land out on a specially designed (maybe the same one which would be used in the historical battle) battleground in Marathorn. If you're not playing Athens or Plateans (can we even play them? (Plateans), The AI army of the two polies would quickly crush the one persian Stack with really few casuties ,resulting in a heroic battle (which would make two littles swords appear on the ground, citing "famous battle :490BC:Commander Miltiades defeated Darius: Maratorn "or something like that. The other 2 stacks would head in either directions north and south so the rest of Helles can have a piece if the pie. Of course, if you're Athens, you can have the task of dealing with the first stack which would comprised of 20 240 units full of immortals (unrealistic, but to make the game a little harder). The first invasion would be a piece of cake to repelled.
Course the second (if you don't decide to get rid of Persians during the ten years of 'rest' first then yeah, they'll be one but this time led by Xerxes, Mardonias, Hydrantes, Orontes and a few other generals who would command more than enough stacks to wipe all of Hellas out if the AI were left in control in the defense of Hellas. in 480BC, a force from almost all the city-states, including Leonidas and the famed 300 would move in to intercept the persians at Thermopylae and so forth. You get the idea.
What about it, is it even possible, or was it done already?