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.

If you install Enhanced Native Trainer there is a setting under vehicles menu that you can use. It makes you pick the lock (with time limits) with out smashing windows. And it also has a time limit once in to start the ignition. Complete with witnesses who will call the cops.

The one I use is in the folder here https://drive.google.com/file/d/1tUymyYA_weU3TlNbeQgAy521-EqWygvL/view?usp=sharing. You will need to sign in to google drive to get it. Also, if you decide to use countryside then you will have to change the setup xml and content xml to get it to work.

I am in no way a Modder and don't have much knowledge in programming but what I have been working on lately to help my PC running smoother is taking maps of creators and trying to break them apart. I have found that with .xml files being used eats up alot of memory causing lag and taking a while to load in game whether it be menyoo or map editor. So I have been seperating the map into two parts, one is for all the props to be used in custom maps and the other is just peds used in map editor. I find that this approach cuts down on loading time as just having to load peds.xml files with menyoo or map editor only takes a fraction of the time than with the full map and having all the props load in custom maps just loads with the rest of the game and no lost to time really. My problem has been two things, one is I find sometimes that in map editor loading peds it sometimes interfer with other peds.xml and I get a map error although if I just run one or the other it is fine. The other problem is that when a creator only uses menyoo to create a map I can't pull the peds codes from the .xml... Maybe in the future, map creators can offer separate files like I use and that will help everyone experiencing lag on large maps like I do. My PC is a little old but it can still handle alot but still, having huge maps coded is alot of drain on any pc. Thanks for reading and my specs are as followed. i7 3770 with dual Nvidia 650 ti boost sli, 32g ram, water cooled cpu and both gpus and a 2 tb hdd with a partition of 400gb for os and games. I have all settings on high and I get no lag until I load up a large map.