An interesting part of my kids playing CSGO is that they can now swear in at least 3 languages. I don't think you can play for more than a couple of days before you learn to swear in Russian (cyka blyat), it's practically synonymous with the game, a couple of weeks and you should know a Polish (kurwa) and a French swear (putain/merde).

And of course "fuck[ing]" and "shit" are used prolifically.