Then I found out that most people had no fog and so I quit and rejoined.. and voila! No fog.
I were rejoining like 4 times that battle and i still had fog.
Fog and rain are funny game mechanics, but it should be on server side and unable to delete it.
So untill fog will be for everyone pls remove it from game.
Also example from EU1 fev months ago:
I joined server when state were like 3:0 for enemies, but they had fog and i didn't. Map ends with 4:3 for my team and i had like 24 kills.
It's best example to show how having no fog is OP