The active Mod directory name therefore changes with each WoT version patch. This folder is where Mods are installed, in a subdirectory named, res_mods/0.X.Y, where 0.X.Y is the most recent WoT patch version number. The main WoT game directory has a special sub-folder named res_mods. It is advisable to install new Mods one at a time and to test their functionality through the replay system or a test battle after each installation to insure that all modifications are working together as desired. However, there can be 'conflicts' between two or more Mods resulting in incompatibility issues which cause crashes or glitches. Many different Mods may be installed and working at the same time. Mods installed on your computer are 'client-side' and are visible only to the player on the computer on which the Mod is installed. A Google search should net you plenty of links.
Mods are posted by the creator to EU, NA, RU, Asia, and other WoT server forums, or to websites specializing in serving up pc gaming Mods, and are available there for download. WoT game Mods may be created by Indie developers, WoT players, history buffs, or anyone with a cool idea who takes the time to learn how to create them.