I just completed the "Assist Persia" quest-line in Tarsos. It has 4 sub-quests. I don't remember it from the original game but I was rarely in Tarsos anyway then. The last sub-quest is "Battle of Opis". It's listed initially as a level 24 quest but it doesn't play that way. No matter how many thousands of units and dozens of buildings I killed, the AI spammed new units constantly. Furthermore, well over 100 of these units were elite, many with over 2,000 hitpoints. Add to that the fact that you cannot direct-assault the base but have to go over narrow bridges and through deep canyons where chariot archers and priests harass you from above. After 5 hours on Saturday, I gave up. After 4 more hours on Sunday, I finally won, but barely. Then I was given a new Quest "Conquer the Rivals of Cyrus the Great" which asks you to do the quests all over again. Now "Battle of Opis" is listed as level 40. I'm convinced that it was always playing as level 40, even when it was listed as level 24. For players who haven't played this quest before, I would ask the devs to check the AI and see if there's a glitch. My Greeks were level 40 (my gear-score is still low), but this was way too much of a slug-fest for a quest listed as level 24.
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