So taxi back to the runway.
If your plane is too busted up to taxi, consider a "ditch" good enough. Even though you made it home, you most likely destroyed your AC. Not exactly a clean sortie if your plane is busted.
Landed, Ditched, it's really just semantics. Score-wise, a ditch is equal to a landing as far as K/D goes. Point-wise, you only lose out on 25% of your points earned for that sortie.
eskimo