Well the obvious conclusion is that they didn't realise that Blackrock was such a substantial feature. The Commander herself called one of the smaller islets 0.65nm earlier as being the IP. Why didn't the operational route guide show a green spot under the waypoint. Drawn to scale it would still have been identifiable as a substantial chunk of hard stuff.
Last edited by puntosaurus; 13th Apr 2017 at 22:25.