There are usually two possibilities when you see an enemy on long range and spotting doesn't work: - it is an enemy and spotting just buggs around - you can't spot because he is of your faction I don't know how much infantry I already teamkilled with a MANA AV turret, how many Liberators and Galaxies I had to shoot to find out whether they are hostile or friendly, how many Sunderers I have to damage before I know if I have to destroy it or not. Could the range for the friendly markers be increased so it is visible on any range to put an end to this guessing game?
