Perk it lightly, but perk it nonetheless.
Perk it like planes are currently perked-if you come back from your Jabo mission, you keep the perks, if you don't, then you loose them.
What positives will this accomplish?
It will encourage surviving your attack runs. It will discourage bombing and bailing, suicide jabo runs, buffs going down to the deck to strafe ack after dropping, etc. It will give the interception of buffs or jabos *after* they drop some meaning. It will mean that bombs and bombers will no longer effectively be an infinite resource used to destroy finite resources (hangars), that jabos and bombers will no longer be as likely to simply storm suicide runs into places where the enemy has local air superiority. Fighter air superiority will have more meaning, good for gameplay.
Since there are no seperate attack perks, I suppose Jabos will simply have to use fighter perks for ord purchase. This is acceptable, considering that jabos stand a decent chance of survival, flown *intelligently*