i've gotten the hang of the game since i got it a week ago but theres still some stuff bothering me.... help is appreciated.

questions:

a) when i have a nice line of troops waiting to engage, how do i get them to charge in one straight line instead of rushing in different directions. some veer off to the left and others to the right and theres a big hole down the middle... exposing weaker troops.


b) when defending a siege, where do i position my onagers? placing them just behind the wall doesnt allow them to fire it seems.