well... Maybe you don't know this website.... www.pcgamingwiki.com/
it's the BIBLE if you need any technical info on a game.
check here : [url=]https://www.pcgamingwiki.com/wiki/Sniper:_Ghost_Warrior_Contracts#Essential_improvements[/url]
it seems that you can tweak the config ini file and manually change the language....
English Config variable: g_language="English"
I don't have this game so you will need to try by yourself !
good luck !
Post edited July 18, 2020 by rogerT