Well I'm playing a Sweboz campaign and i just finished my Lvl 5 mic in my capitol and trained two troops of Germanic pikemen and managed to get them over the alps. now they and a fairly large stack sit on a bridge near Mediolanum. now a Romani stack of similar strength attacks them and we fight for the bridge.last time i had a bridge battle i had a unit of Alpine Phanlanx with meand they killed a mob of 500 angry Celtic spearmen and levy spearmen. while loosing 20 men. I said to myself "well when those pseudo hoplite phalanxes can do that what will my pseudo phalanxes to in the same situation." so i did with the outcome of me reloading the game because those §")%!§/)=%!§/?$ stopped like 5meters before the bridge begun and settled with a circle as formation!!!!!! I've seen units dooing silly stuff, i've seen the phalangites dance and I've seen the Ai charging their FM's into the front of Agyraspidai and what notbut this is exeedingly annoying and I know it just needs a good advice from someone more experienced in pseudo phalanx warfare than me :)

so:
what can i do to let the Germanic pikemen get into an anti bridge formation as fast as possible(the romans on the other side charge over the bridge :/ )

thanks in advance