File structure for "User created Challenges, BushTrips, Missions (soon to be?)

ASOBO, please provide for us the correct “file structure” for user created
missions/challenges, etc. Things seem to all over the board now in the already
complex heirarchy of FS2020 files. Perhaps some of this is due to
BushMissionGenerator and/or BushInjector, but regardless, it should help us
all get some order in our creations. Thank you and please show “Mission
Development SDK” the priority it deserves. Thank you.

Here is a sample project I made a while back:
https://flightsim.to/file/23934/mission-creation-resources