Guard mode is a godsend to me.

In MTW when I had a defensive line of melee troops they'd go running after routers ruining my sturdy formation I spent ten minutes before the battle setting up. And if the enemy rallied they could tear my undesciplined army apart. I kept having to manuallly bring my defensive line back into formation. With guard mode, they stay put. CA read my mind and they made it specifically for me.

They can do that you know? Read your mind. They put mind reading scripts in their code.