Board Thread:General Discussion/@comment-1672596-20130609012019/@comment-1504072-20130609100118

I would assume he says both lines. First call to him is probably about Big Boss being a monster and for Snake to use his head, while in a second call he actually says what to do. Similar to when he explains how to translate Marv's coded message from the carrier pigeon, Miller gives the player a chance to figure things out first. I would need to check on this again, but this seems to be the most likely explanation.