1- Open the mission editor. Use the unlocked one.
Click here.
2- In '
General Information', look down the page for '
Global Effects', and put any number between
10 or
19.
3- Now put a area trigger where you want to the music to start. If you want the music to start when the mission begin, put the area exactly where is the Player Start Marker.
4- Open it item's atributes, and you will see down the right:
Music (var4). Check that box and write
80.
5- You'r done!
Luis.