Are you sure? I'm almost positive doMove should execute the command with no chatter, whereas
commandMove is the one that audibly gives the order.
Then again, these commands are from OFP days, when you couldn't 'hear' the commands being spoken by other soldiers: maybe they say it without the radio text coming up or somesuch. Hmm. Weird.
If you need it for e.g. a cutscene, you can always try to get around it somehow (like placing the camera far away and zooming in, instead of having the camera close enough to hear).
Wolfrug out.