Ambush in place Sir! (sitting behind a tree...)

[Obelics]

well, im just courious, on every mod i tryed, it seems that a feature of RTW vanilla, occurs less often on the modifications. I m referring to the "ambush in place!" strategy, when your little men on the Campaign Map sit in a strange position near a forest and wait to ambush some enemy.
Do you use often this nice tactics?
It is nice to have all your enemy marching on a queue, and your army completely sourround them...
But since in the Vanilla this occurred very often to me, seems that in other mods it occurs not so often (it never occurred to me in EB yet, i cant find again a good position to ambush)

So here we are:

1) Do you use this strategy and how often you obtain to surprise your enemy
2) Do you have some preferred place where to hide your army waiting to ambush, and with what faction
3) if you have can you post some screenshots of the best place on the Campaign Map where to pose an ambush?
4) if your ambush go well, how do you set your formation on the battlefield? (example: i sourround the enemy with javelimen or i use heavy infantry to sudden charge them in the flanks etc)

ok, thanks, im very courious