Are you wanting to make it to where it's an automated feature for offline missions or as you mentioned earlier in your opening post, about "Alt-tabbing" out of AH to another separate add-on designed feature ....?? "Campaign Manager"
I will try to get some time and go pull up my CM checklist of how to do the logs (start logs / stop logs / upload logs to AH Events) for you... Unless one of the CM's can come and post it here for you or PM the procedure/process to you before I can get to it....
iirc, there is a process of starting/stopping logs to a file.... I just need my checklist to refresh my memory.....of in what order of procedure/process of doing them....

TC
Don't bother. It was probably just a dumb idea. Sometimes my imagination gets the better of me.
Chalk it up to caffeine toxicity.
[edit since you took the time to respond, I'll at least explain what I was thinking about...]
I was thinking of writing a fun project to learn Unity better. It was going to be a separate program that you ran side by side with AH and you alt-tab between them as needed.
In the campaign manager you would pick a genre/ AO like "WWI/Western Front" or "WWII/Guadalcanal" and then create a persona to track a career progression.
The campaign manager has compressed archives of a set of offline missions and the logic of a decision tree so based off the outcome of each mission, it branches to the appropriate next mission based on success or failure.
The campaign manager would then decompress the appropriate mission files and copy them over the the appropriate AH folders and prompts the players to go play the mission.
The player alt-tabs back over, it always overwrites the same mission so it is always the same local mission, just with different contents each time.
When the player finished, alt-tab back to the campaign manager and it would parse the log file and update the tracked career stats and progress the mission path to the appropriate branch based on victory or defeat. Promotions and medals might be awarded. If the player died, that persona is closed, and they start a new one.
Like I said, too much coffee today.