I find ambushes to be rare. I can have a army waiting in the trees for 10 turns, just to have some AI army walk right by them! Then they see me and attack me regularly. When they do work out it is very enjoyable But, none the less, it is rare :/
First you need to know good hot spots to have your troops for the ambush. Greece has crap for trees. I like to play with the gaul and juli.
Anyone have any thoughts on ambushes? I thought it was going to be a big part of the game, but I guess I'm alittle disapointed.