Currently there is no incentive to Ejecting, I'd like to see something where when you Eject (and don't hit the ground too hard) you can 'survive' and not lose a life for whichever aircraft you piloted.
It's really not fun running out of lives in a multiplayer mission, this would make it less likely if you eject before you die.
Enable 'Pilot Ejection Survival' (only pilot deaths count towards aircraft lost) could be a togglable option right along side 'unit icons', and 'allow late joins' prior to hosting a multiplayer mission.