Yep, the help file went away and the pdf of the Krabbs tutorial link is also dead. If you have a copy, please post it. Starting new file right click on Allied Mission 1, add route, left click on the map at the point you want the flight to originate, then release, left click again and hold and drag the arrow to the end point of your first segment. Be aware myself and others have had problems with missions originating on air fields and most of mine have been in air spawns because of that and it is time efficient.
