Escort the bombers would be cool idea, half of the team is bombers half is fighters, the other team is all fighters (so yes the odds are against you). Your bombers have to reach their target zone, and you lose a lot of tickets every time a bomber goes down, while the other team gains tickets. This would force people to actually protect the bombers to win instead of going lone wolf. Players controlling the bombers can use their turrets, and maybe they can drop bombs on some bonus targets along the way or something to keep them entertained and to score some extra tickets.
I had another really cool idea in my head the other day, I'm smacking myself in the head now for not remembering.
If it comes back to me I'll be sure to post it.