Ai behavior once hit

[6BL Bird-Dog]

Do you concider the Ai behavior of Aircraft once damaged realistic or think there is room for improvement ?
For instance an enemy bomber has control or engine damage or even lost critical numbers of the crew.In real life the Pilot would probably break from formation and desend toward home if he concidered the target unreachable or that the aircraft was damaged to the extent that any other option would seriosly effect it`s ability to get back to safe territory.