You can only edit MPQ's as well don't try to fight it, just send me the map with all the files and I will try my best to fit it in. Trust me I think I can do it. Besides if you use the MPQ then not many people will play your map, I just hope you don't want your terrain to be like a city. Just let me try first and see where we get too then if it fails you can try the MPQ editing, there isn't much to be known about MPQ's, you can edit and replace files only.... so not much.