to get your own stock xml's be sure you are doing a fresh scan/recording of loading the game.. meaning...
clear cache and data on browser,
then in Charles deselect the local mapped xml's (tools>map local settings (Ctrl+Shift+L)) by unchecking them and clicking "ok" to confirm you deselected them,
and close Charles afterwards
then after again clearing cache an data from your browser (always best to be certain its cleared again), close the browser
depending on how fast your system is give it a few moments to be certain all processes are closed fully
then re-open Charles an allow it to fully open and load
the reopen your browser again (best to have a bookmark to the game page saved to the toolbar) as you load the game window sign back in facebook and the game
once the game has FULLY loaded double check in Charles an see if the xml files an folders are being recorded an not still linked to local files.. if still linked attempt to deselect the local mapping AGAIN, till its now getting fresh copies from the server..
if they are loading fine and not still locally mapped right click in the left window the xml you want to save an scroll down to "save response"
then direct it to the folder you want to save your "stock" "fresh" files to and tell it to save it there.. if asked tell it to overwrite the older one so you KNOW its a fresh clean copy from the server..
do this with ALL the xml's you want to save for your edits..
to get mission xml's you have to open the mission and wait for it to fully load it an then save those as "fresh" files also
it is best to learn and know how to get your own files if you need them so you wont have to wait for others to do possible updates or changes at some given time either because the server updated files, or because you need a fresh copy cause your edits royally messed up.. lol.. hope that in some way this helps you and others to maybe have a better idea how to try an get your own files if and or when you might need them..
if I missed anything sorry but this is pretty much how I manage it for myself so I can be sure I don't have outdated or a corrupt set of files.. an who knows I might of missed something during the time I tried typing it out.. lol..