baud
Arcane
We missed some interesting fights, like Hannibal's veterans, the variety of Hellenic enemies of the third act and of course the FINAL BOSS. But I'm happy people gave this a chance, it's a simple work of love. Dunnow if the author will ever manage to do the same, apparently this required two-three years and ancient historiography isn't chock-full of campaigns that can be adapted like this.
Out of my mind, maybe Procopius gives you enough variety in "follow a general around, see the world, kill people". But that would require mounted combat an' archery and shit and I don't know if the combat engine would support it.
Wouldn't the campaigns of Alexander be well suited for that? They covered a lot of ground after all. Granted, the sarissa may not be super convenient for duels, but they also had sword, and the player could be a hypaspist.
The anabasis could also work.
How about the Gallic War with Jules Cesar? There's at least one campaign there, with maybe Britain afterward. And then if I got my history right, there's a civil war afterward. And maybe a war in Egypt. Though there's still the issue of mounted combat.