Sooo - apparently Springfield Aerodrome NZ (ICAO Code NZSF) operated by Canterbury Gliding Club , is, - in MSFS - Darfield Airport
To make matters worse, there are actually two entries NZDF (the best one) and NZDR - which has runway 10 running across the main road. Both appear on top of each other if you call either of them as your FROM airport
For the avoidance of doubt. an Airport called Darfield in New Zealand DOES NOT EXIST IN REAL LIFE. The correct icao code and name for NZDF IS NZSF Springfield Airfield (Canterbury Gliding Club)
NZDR is a duplicate and should be removed