Orc cries of honour will always be useless until such a time that it is codified and not the subjective opinion of individuals. Further, Horde Honour™ will always be a farce as long as orcs insist that their fictional ideal always applies to all members of their multicultural coalition, assigning collective responsibility while the Horde as a whole seems to ignore or license what its member states (Forsaken) are up to until it becomes inconvenient.
You can’t hold others to a standard that you refuse to define and expect all to comply when standard procedure is to grant as much wiggle room as possible via loose rulership. Honour so loosely defined yet eagerly enforced on others is nothing but cultural imperialism. This is extra arrogant with orcs not leading the Horde.