Aircraft select: Hold [Option] and select "Tour Of Duty"
from the "Missions" menu. A prompt with two fields for
mission number and aircraft will appear. Enter one of the following
case-sensitive aircraft codes to use that aircraft in the corresponding
mission. Note: In order for this cheat to work, the selected mission
must already contain the aircraft that is chosen. Alternatively,
type fly:<aircraft code>-<aircraft number>
as a call sign. For example fly:MG21-00 or fly:B727-00.
