Online War - FMB scripting

[ZaltysZ]

Spawn/despawn script is kinda "incomplete" and causes unwanted behavior: plane instantly disappearing on bail out or plane disappearing when single member of crew leaves the plane (i.e. one of bomber gunners leaves the plane) while other members are still inside.

Additionally checking if plane is manned before "killing" it should help with multicrew plane despawns. Bail out despawns probably will be a lot tricker.