The mod folder @massi_nato_weapons will be renamed to @NATO_Russian_SF_Weapons on the repo to make it easier to add custom mods in Play With Six (PWS) that depend on it, as PWS works on mod folder names to determine if you have the mods and not the actual contents of the folders.
PWS will re-download the whole mod if it’s renamed, but due to the approx 500Mb size of the mod this will be too inconvenient for many. To avoid this, a good course of action would be to simply make a duplicate of the @massi_nato_weapons in your server mods folder (see your PWS settings to find out where that is) and name it @NATO_Russian_SF_Weapons. This can be done before the name is changed on the repo.
This rename of the mod on the repo will take place in the next few days to allow people time to notice this post and rename it themselves.