you're acting like the weather is an organic sequence, like real weather, when in reality it's a person with their own biases and intentions controlling it. many times on boreas the fog was turned up right before a scheduled raid, and now that the combine is in control of the agora, an area that is particularly vulnerable to sniper fire, the decision was made to enable fog 24/7, but when rebels were in control, it was decided to keep it off 99% of time. i wonder what the biases of the staff team are, curious.