[temporarrry0923]

I mean, it has fog of war, yes. It's not as good or strict as it could be. I have seen discussions with the devs and they say that if it is more "strict" (ie hiding player positions until they are closer) would be more taxing on CSGO servers, AND would screw with high ping players (they would experience pop-in).

Check out https://edan.gg/defender to see the comparison between CSGO and a better FoW system.

[nitrogen]

I'm not a CSGO player, but I assume you also have to be able to play e.g. footstep sounds for someone coming up around the corner, so you at least need to send the info that someone is nearby.