You should add the Entity Folder and containing files that you used to your release and reupload it, otherwise it will cause a 'Map Data Load Error' for those without them. You should also make a habbit of not overwriting existing files (A1_Grass_field.dds in this case) as it will also change them wherever else they're referenced. Other than that, a good release. I'm happy to see others are investing time into creating new content.