Falling through the ground on Add-On Maps but can see them
I struggled with countryside mountains (part of the Liberty City Remix download) and after messing around for a week I finally concluded that the problem was not in the setup xml but rather it was the content xml that was screwed. I ended up copying the content xml file from French Riviera and put it in the countryside dlc folder. I then went in to the xml and replace all riviera names to countryside names and it works now. I am currently running six additional huge maps under ver.2628 and have no problems with any of them. Here is what I have, (Liberty City to the east, cayo to the north east, Vice city to the west, countryside mountains to the south, French Riviera to the south of that and San Fierro/Los Venturas to the north west). I tried windy city but it messes up all the others.