about 3 years ago - CyberStonka - Direct link
Dear Steam players!
For unknown reasons, Steam have started downloading the game files again.
In order not to download existing files again, you can use the following:

Pause the download of the game on Steam client.

Find the folder with the War Thunder game and rename it (for example, as “War Thunder1”).

On Steam client, uninstall the War Thunder game.

Rename the game folder back to its original name.

On Steam, find the War Thunder game and click "install".

Steam will check the files and download the missing ones, if necessary, so you can continue to play.