You    can't    usually    'soft'    boot   your   machine   with
[Ctrl]+[Alt]+[Del]  while  A-10  is  running.  But,  if you have a bad
mission  and  don't  want  to save the results of a mission there is a
short  period  while  the next part of the program is loading when you
can  'soft'  boot.  After a bad mission but, while the next section is
loading,  hold  down  [Ctrl]+[Alt]+[Del]. When you restart the game it
will be as if your awful mission never happened.