To keep your pilots alive forever, make a copy of the files
 that have your name before you go on a dangerous mission.
 For example PILOT1.PLT or JOHN.PLT.
 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 JAMES.PLT change to the
 Battlehawks directory and type:
 COPY JAMES.PLT JAMES.XXX
 To resurrect the pilot change to the Battlehawks directory and
 then type:
 COPY JAMES.XXX JAMES.PLT
 Make sure you copy the .PLT file every time you have a
 successful mission. Make a separate backup copy for each pilot
 you have.