Do you have any tips how to beat the Romans with an Averni/Lusotanna factions?

[WinsingtonIII]

Chariots', infantries' and fire arrows' scare effects stack on eachother, because they aren't the same type. However the same types don't, like Gaesatae's and Uirodusios' frightening effect won't stack on eachother.

I didn't realize that the chariot fright effect was any different from the infantry fright effect... I thought they were both simply "Frightens enemy infantry"

Even so, my point still stands about the half stack of Urodusios and Gaesatae... but this does increase the value of Cidainh even more