Being in Mercenary setting should have a clear benefit that other setting should obviously not, I believe, though it just dawned on me.
Honestly being a mercenary at heart as some of us are, I see no reason why if you are leading mercenary troops you are unable to forage if a battle does not go your way or you retreat. Technically mercenaries would go through and forage after any battle to procure better equipment/gear and spoils of even defeat. Perhaps we should change it. If it is at all doable though I do know it would possible be complicated to do.