I've said it before but the Borg know exactly what the COs are saying. These verbal commands are not in the literature for the very reason they can deny it if challenged, as they were by the ARC on their shunning procedures.
The verbal commands go into the minds of the R+F and they know this is what is required of them. It's very clever and insidious, so much of what I believed as a JW was verbally taught in talks and denied if necessary because it wasn't in print.