Invincible Greeks?

[Sinner]

As another option, why not simply starve the defenders into submission? It does tie up your troops for a number of turns, but best case the city will just surrender with no losses to you - which is what's happened in every siege I've done so far - if not, they'll eventually sally and you get to fight them, but at least they'll be coming out from behind the walls.

[Khorak]

And finally, you appear to be making the mistake of thinking that Iberian swordsmen are useful for combat. They're not. Possibly some can be used as servants and doorstops but otherwise, they're just a showcase of how everything Iberian in this game blows. Those Hoplite mercenaries should have been on that wall schooling those archers, they would have massacred the lot of them.

[Ulstan]

For stone walls, don't bother with rams. The gate will have boiling oil on it anyway. Send up men onto the walls with seige towers and ladders. Take the time to build quite a few and flood the wall with infantry.

Your current army is very infantry light to try seiging a a city like syracuse.

I think you can give a single infantry unit more than one ladder (it could depend on size though - with 80 man units I have had 3 ladders in one unit) and this lets them get up onto the walls nice and quickly.

[Slaists]

it also depends what difficulty you are playing: on VH, vanilla archers have better attack stats than your iberian infantry... the latter being just a unit of beefed up town militia. Also, while your infantry was attacking the archers, the wall towers probably just continued shooting at them...