Ok everyone new issue.
I am using MMS to make this mod. I created the mod, edited the tweak files. Then altered the CS2 files in 3DS Max, managing to do it in the 2014 version using the method I posted above this post.
When I exported the CS2 files I put them in the raw_data folder in the C:\official_mod_tools\raw_data\Empiredesigndata\campaign_maps\bos_japan. Is this the right place for me to export them for it to work with the MMS files that I have tweaked for the maps?
And once you have edited the map in 3ds max do you need to save it as a 3ds max file?
When I started my campaign after installing my region mod, no changes were visible.
Please help!