This mission subject has bothered me. Why are they so confusing and hard to figure out? What was wrong with the old way missions were set up? I wasn't here when AH2 went to AH3 so I'm lost.
The player run missions are the same as they always were. A player picks a pick-up mission, selects the field to launch from, picks the planes, and ords for the planes, and most importantly picks which direction to launch from on the base

clicks ok and begs other players to join his/her mission.
What I think Hitech is saying much like the "off line missions" (when the game loads up the first screen instead of clicking "on line arenas" click the Off line missions) you can build some missions and have them loaded with the terrains (as the maps are different) and have these mission launch at certain times in the MA. Im guessing a bomber raid to a/both opposing countries HQ at say 8 central. While shooting them down most likely will not give you points, you can get some "action" as the AI in game are decent and if you dont get them, they WILL damage your HQ.