Spotting the enemy?

[Roblex]

Of course one thing nobody is mentioning is that in real life it *was* very hard to spot aircraft and nearly impossible to see anything against the ground. I have read three fighter pilot biogs in the last few months and they all mention how impossible it was to see anyone against the ground. They also mention whole squadrons failing to see enemy squadrons nearby and even cases of 109s accidently joining Spit formations and vice versa.