A sound effect for calling, recalling and arrival of the escape shuttle.

[John_bigless]

It happened quite a lot of times that i didn't notice the shuttle being called or arriving. Add a sound effect for when the shuttle is called, recalled or arrives so that this never happens again.
Also for immersion reasons. Who wouldn't want the speaker screaming "Woop woop, shuttle arrived, go get your fat asses over there or die."