Sorry there is no manual. The zip file includes a message to visit here which a standard included message. Watch the video above and read the custom tundra instructions below. Also remember to start the mission by clicking the main mission name. The others short names are to start along the route. The missions are under “Backcountry” category.
MISSION NOT LOADING!
Dangerous Flight Alaska Tundra Mission does not load mission but starts at airport with an empty kneeboard. No explosion or voice for the intro.
You most likely are missing aircraft or AI aircraft that is required for the mission.
Solution:
Either put back aircraft that you removed or reinstall FSX with SP1 and SP2 or ACC.