I love FSO and snapshots but rarely get to play them because of work schedule, so I am still wishing for..........
An arena that only runs scenario missions.
You enter the arena, read the mission briefing and choose a side, axis or allies.
You select one of the (enabled for that mission) planes/vehicles and at mission launch time, you are spawned to the correct field and runway with the correct loadout.
Simple enough for walk-ons.
The missions run several times a day and the scenario changes periodically.
For example, one might be "Escorted Bomber Raid into Germany" the next, cv based "Battle of Midway" and the next "Battle of Britain."
The missions use airspawns to reduce time to target and after the alotted time runs out, you are warped back to base to land your kills and the mission wraps up in time for the next one to start.
With Combat Tour on hold/cancelled, this could offer a daily dose of historical game play, and provide an alternative, an hour long break from the spit vs spit, corsair vs mustang M/A horde fest.
Especially nice for those who can't attend FSO or any of the other scheduled events.
I don't know hard it would be to do something like this, but it seems to me that a scenario arena could be completely automated with the programming the game has already, by adapting the offline mission editor, the mission creator in the M/A, ENY or arena cap balancing adapted for side balancing, etc.