At start of match, Everyone has too spawn CAS/ aircraft first if its in your line up and you only get 1, also resupply of bombs cost SP depending on its weight
when you die you can spawn as SPAA or tank,
If you good enough you can stay as CAS/ fighter through out the match if you want
Since man crawled out of the trenchies and took to the air, air superiority has been the biggiest factor. The next world war will be in the air
Edit : Or make planes cost the same as tanks but you have to pay extra for ordinance and its resuply, ie you would have to earn SP by shoting down CAS in order to land and equip bombs.
CAS is to strong in its current state and fighters need to spawn before CAS to give cover over its teams tanks.
My solution was to always just bring in OTHER targets for CAS to go find and remove such as the old Artillery units that used to provide the artillery ability, but that got removed because people couldn’t figure out that they were losing thier ability to artillery for a reason.
These units weren’t marked on maps, and you genuinely had to go search for them.