SpawnScript and Loading new Air Missions

[5./JG27.Farber]

I am reallly curious about the SpawnScript check box in the item description in the FMB. The current way I hear most severs load the missions is as an over lay of another mission on top. Can SpawnScript be used in the same way and does anyone have a simple example mission they could show me. Would it not be more Stream lined to have everything on the one map? What would be the best way for server performance?