Dust-filled nostrils and grit in the eyes are givens when rounding up hundreds of cattle in the outback. It's early morning, but the team at McArthur River Station, about 80 kilometres south of Borroloola near the Gulf of Carpentaria, is already tearing through the dusty scrubland trying to corral 400 head of cattle. McArthur River Station manager Chris Bateman says …