Player count in top tier sim

I see your problem, however when doing CAS (which I love doing) there is another general problem with the game, namely that the higher you go with BR the harder it becomes to do CAS because fighters are too good. In fact, IRL cas planes are only deployed when they know they have air superiority/cover from your own AAA.
At top tier imho doing cas is simply not an option, unless you end up in a peaceful lobby or one that is almost empty.
In any case, reducing the number of players at top tier would significantly help also for the people who wich to do CAS.

Indeed and CAS can (and often is) crucial for winning the game.
IIRC, winning a ground battle after capping yields 800 tickets, or so, probably the highest possible single task ticket bleed in EC.