Current questions and answers regarding the map editor.

MapScript.xdb is located in the folder
D:\GAMES\HMM5MP2\Editor\H5MMods\myMap\Maps\Multiplayer\myMap?
But it's never there for me ><

You need to create it (if there are no scripts), and you can do this either manually or through the editor ;)
But the easiest way is to copy both files (lua and xdb) from another map :smile08:
This is a better way to ensure the correct encoding.