Orders for you to begin writing. Letter fluff to come.

All are to prevent Hannibal from crossing and rearguard for Scipio in his retreat if he comes your way. Send frequent scout parties to see if he's looking to cross anywhere

Western half of river Arno detachment: Byrd/Jangel, Byrd commanding.
Eastern half of river Arno detachment Dedonus
Rubicon river, Rubicon-Arno gap (there is a small gap between the Rubicon and Arno head waters) detachment: My four legions and Lancer

Appenine reserve, to come to east Arno or Rubicon defense: Jiwon

Magna Graecia garrison, in case Phillip tries something or the Oscans want to revolt: Phoenix