To keep your pilots alive forever make a copy of the
 ROSTER.FIL file before going on a dangerous mission. If you
 get killed you can copy the file back and your pilot is
 resurrected as though he had never flown the fatal mission.
 For example to copy the file type change to the Gunship
 directory and type:

 COPY ROSTER.FIL BACKUP.XXX

 To resurrect a pilot change to the Gunship directory and
 then type:

 COPY BACKUP.XXX ROSTER.FIL

 Make sure you copy the ROSTER.FIL file every time you
 successfully complete a mission.