Gotta admit, I'd rather the planes didn't return. I loved 1942 to death, but due to having a **** computer didn't play any of the others until BC2 and oh my god I could never go back. No more guys who have memorized the locations of the AA and will kill you before you know they're there, no more losing flags because no one is defending them because there are only 32 players per side and the map is a million goddamn miles long and who wants to sit in the middle of nowhere to babysit a flag when that involves maybe fighting one guy every couple of minutes, no more--well, okay, less--of one side stealing vehicles and completely destroying the map's balance, no more plane campers, no more guys sitting on repair pads in the base spawn camping no more...
I don't know how many of those were addressed in Vietnam, 2142, and 2. I just know I don't want to deal with anything resembling that stuff again.