Did you know that whan on the new stalingrad level if you go to video options, don't do anything but press save, then go back in game, you'll find the sun has come out and burnt all that nasty fog away and you can see for miles.
Guess it's just an exploit but it kind of sucks if those who know can see and those who don't are stuck in this misty morning (which is why I'm posting this - to try and level the playing field).
And while we're here I've just got to say that I wasn't in the slightest bit prepared for just how much .6 was going to rock. The merciless sounds are awesome, the rifles now need more skill, the planes are tricky and a real challenge, and I love the new tank sights. Few maps are a bit laggy for me, but what the hell. Great work, and most definitely worth the wait.
There is a similar bug on the custom made map called "Caen" (not the one that comes with 1.6) that is used with TWL league (BF, not FH)