How do you make custom preview screens? if its the same as loading screens then ok..but if its not please tell me.( Preview screen is the one in the waiting lobby were you wait for host to start game for those of you who dont know ). So here it is -If its just as simple and the same as loading screen just tell me.And thanks -If its diffrent like i need a diffrent program or some sort please tell me that also.And thanks also. Anything would be a help for now.
It's actually very simple a lot more then people think u have to make ur pic. 128x128 pixels or 256x256 pixels. u also have to make it into TGA format. U import the picture and then u make the path "war3mapPreview.tga" and it should work. If not check this website http://www.world-editor-tutorials.thehelper.net/minimap.shtml -Secret Assasin54321
Preview screen is the one in the waiting lobby were you wait for host to start game for those of you who dont know 
i hope it makes ur map look better 