At 21:15 on Stratis it is black night - but not even the lights of the streetlights are lightening up the area.
Even though you can see their lights on the ground via nightvision - they do not appear in normal vision.
Heres a youtube video from that mission. Plain black^^
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Also I got a strange graphic bug.
Many lights and tracers got a 4 little coloured dots in a square around the effect. Maybe its related?
Example pics:
https://dl.dropbox.com/u/4934308/Arma%203/bgus/bug_1.jpg
https://dl.dropbox.com/u/4934308/Arma%203/bgus/bug_2.jpg
Forum post:
http://forums.bistudio.com/showthread.php?148986-Graphic-bug-with-ATI-HD-5850-pro