Yes, if I understand the narrative so far, these operations are somewhat 'just in time' and 'we need it now' rather than a planned and scheduled flight. How long had the crew been up before launching this mission I wonder? I know the constant drone and vibration of a C130 could put a declared insomniac to sleep in minutes and I imagine a recip like the accident aircraft would have similar sleep inducing powers especially at that time of night on a crew that may have already had a longish day. Just agreeing that maybe they weren't as sharp as they could have been as they made an all too familiar approach. Flaps down?