One thing that's a problem with most of the missions is that the CAS aircraft are all routed to a small target area (usually about 25km wide), with all of the fighters aimed right at the same area. Would be nice now that the servers are getting better is for there to be a lot longer FLOT (100-200km) with the CAS planes assigned to different points along that FLOT. Fighters should also be given a more specific zone for their CAP. This of course would require quite a bit more coordination than you usually find in mp though.
Should make life a little easier for the CAS guys, there's a better chance that the CAP will be far off from where they are at--maybe 1 in 3 sorties they would get jumped (just a guess here).