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Why not post some screenshots? The graphics were set to low, though, so... :)
1) Here's what happened: I was playing as Armenia. I bribed a Roman general with diplomacy (you can tell by his face in the screenshot), bought him some mercenaries, and captured a city (it was neutral at the time... I'm not sure). Then, the Scipii arrived and attacked... I think you can guess that this is the lower city... I don't remember which one, but it's closer to the left side... Here. They had a large army, with many different types of legionaries, but I won... thanks to my elephant unit)) Hehe...
2) Just a screenshot... I had a similar army for myself and the Persians, until I developed to the point of having cataphracts... They have good cavalry, even though they mostly have archers)))
3) Suicide units... Sometimes I like to play in such hopeless battles =)
4) Hmm... I think these are the same suicide units, but from an earlier battle... I don't remember anymore... It was a long time ago =)
5) And this is a screenshot from Barbarian Invasion =) I'm playing as the triangles =))
P.S. Next time, I'll post screenshots from Medieval 2 =) They look better there... IMHO :D
P.P.S. Civilization and Total War are different games) They shouldn't be compared...