Callen tells Hetty that in his dream he'd been chasing the person who photographed him at his sister's grave through Downtown LA, but the chase occurred on Hollywood Boulevard and through the Hollywood & Highland complex on the opposite side of the city.
Hetty tells Nate that a C-117 is waiting for him. The C-117 was a variant on the World War Two-era C-47 Skytrain. She probably meant a C-17 Globemaster.