This was something that was oft modded in to Warband. It is the ability to tell units what weapons they should be using.
This would allow us to tell infantry units that we want them using spears, this would allow us to tell archers to only use bows. Currently what is happening is that it is up to the AI and they often don't make the right choice and it can lead to some aggravating moments. Such as archers switching to melee when someone gets within 25 paces. I need them shooting their bows and it's largely frustrating that they switch to their melee weapons and charge in whenever someone gets close. I have infantry stationed near them to take care of it or I am watching for combatants so that I can defend them. I need them shooting their bows, but they'll often switch to melee and charge in. Which causes me to have to set them further back, but it leaves them completely exposed as they're too far from the infantry.
Another scenario is spearmen having their sword out to face a cavalry charge or spearmen having spears out for a siege.
This would allow us to tell infantry units that we want them using spears, this would allow us to tell archers to only use bows. Currently what is happening is that it is up to the AI and they often don't make the right choice and it can lead to some aggravating moments. Such as archers switching to melee when someone gets within 25 paces. I need them shooting their bows and it's largely frustrating that they switch to their melee weapons and charge in whenever someone gets close. I have infantry stationed near them to take care of it or I am watching for combatants so that I can defend them. I need them shooting their bows, but they'll often switch to melee and charge in. Which causes me to have to set them further back, but it leaves them completely exposed as they're too far from the infantry.
Another scenario is spearmen having their sword out to face a cavalry charge or spearmen having spears out for a siege.
