[fly_zo]

So, what do we have to back up?

Any file in your mapmods folder that this pack is likely to overwrite.
______________________________________________________

Sigh ... In fact I was asking what folder or files are indeed likely to be overwritten. And since none of the new winter maps are contained in folders in the Mods/MapMods/Maps folder anyway, what would there then be to overwrite in the first place?

I am wary of .exe install files, since once set in motion, they often tend to overwrite files without prompting and then there is no way of undoing. Which is why the excellent advice is given to backup the necessary files beforehand.

But I am still no closer to knowing which folders or files are likely to be overwritten. I don't want to do anything irrevocably wrong.

if you have custom runways .... back them up
if you have M-bug's high res textures (1024x1024) and want to keep them ..... back them up

basically.... back up these folders :

mods\mapmods\maps\_Tex
mods\mapmods\3do

Z