Sort all core missions in training menu more logically
The missions are now sorted as specified in the new order.cfg files in the Missions subfolders.
Training missions are now sorted in the order you should play them.
Challenges are semi-logically grouped.
Scenarios are roughly sorted by difficulty.
All missions not mentioned in order.cfg are simply added in no particular
order at the end.
User_Mission_-_Dangerous_Ducklings
Bazooka_Battlefield
User_Mission_-_Bamboo_Thicket
User_Mission_-_The_Great_Escape
User_Mission_-_Teamwork
User_Mission_-_Teamwork_2
User_Mission_-_Newton_and_the_Hammock
User_Mission_-_Diver
User_Mission_-_Spooky_Tree
User_Mission_-_Nobody_Laugh
portal
Tentacle_Terror
Big_Armory