[BF-109 F4]

Is it possible that pilots have a limited line of sight ? If its possible that only after some distance they can see and identify a plane . Like at night they cant see anything in reality , but in game they know theres something out there . I had this idea watching some real movies of WW2 where actually pilots had difficulties finding planes . Imagine this :
Youre in a fighter flying at a reasonable altitude and you see an enemy fighter flying below you , he didnt see you so you try to engage him and he cant see you behind (unless its a fighter with mirror) , he only knows there is something behind after some shots but it might be too late for him .
Even in day this can happen .
Just an idea but i think its hard to do