When you are walking / flying / driving through big city in altis (like in the south west ) during the night you will notice this problem.
All lights of the city are switched off. If you are in a certain position in the street or an other, lights will switch ON or OFF.
That mean you never have a street with good lights and when you want to move lights will alternate between ON and OFF.
Pretty unrealistic and, bad point compare to Arma II.
Hope you will solved this problem.