Is there a way to designate a ground unit formation as "No Commander?"
When I set up my ground commander ranks, I always do the following:
N/A NO COMMANDER
--- --------------------------------
A rank I'm not using yet...
Another rank I'm not using yet
Highest rank in use (at game start)
Second-highest rank in use
...
Lowest rank
Any formation I don't want to have a commander gets the NO COMMANDER rank. The "---" rank is never used and acts as a barrier so that no commander auto-promotes to the NO COMMANDER rank by accident. It is a bit of a clunky workaround, and it requires you to decide in advance how many ranks you will use for the entire game, but it works perfectly otherwise. There is rarely any reason to have more than 5-6 ranks anyways since higher-level formations are just redundant with the current Aurora ground HQ mechanics.