It'd probably be a royal bear to account for all of the different possibilities, and maybe not even possible within the engine's current limitations, but it'd be a really cool concept to create a campaign which can even continue after the original player character's death, provided your wingmen are able to complete all of the objectives themselves in the mission where you die. To maintain continuity, you as the player could be switched to one of the other pilots in your squadron, with the original pilot's death noted as part of the story. To prevent a conveyor-belt effect, you could switch to some set failure conclusion of the campaign if the player dies too many times. From what I've heard, the recently-released PS3 title Heavy Rain uses a concept similar to this.