Advanced Dark Heresy 2.1 Cell Directives

From the introduction:

This document is completely unofficial and in no way endorsed by Games Workshop Ltd. or Fantasy Flight Games.
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Cell Directives represent the communal abilities available to a group of Acolytes who have chosen to adapt particular strictly binding way of behaviour and investigation. This adaptation may come through special training they have received, particular common background they share or via doctrines of procedure they deliberately choose to be their way or they are forced to adapt by their inquisitor.