Sugestion:
mp_dotrange FOE DOT 15 COLOR 0.99 RANGE 5 TYPE 0.001 ID 0.001 NAME 0.001
mp_dotrange FRIENDLY DOT 15 COLOR 2.5 RANGE 0.001 TYPE 0.001 ID 0.001.0 NAME 5.0
For foe you see:
DOT distance default of game - 15 KM when you see only the DOT
At 5km you see the RANGE numbers and at 1 KM you see COLOR
For friendly:
DOT at 15, NAME at 5 and COLOR at 2.5 km.
In this setting COLOR tell you that planes are near.
So, for enemy you see only distance numbers, that chage color when near.
For frienly you see only the name of pilot, that chance color when near.
Since numbers/names appear at 5 km the bug of invisible plane at 2.5~3 km is no problem.
Since type, ID (useless) are not show this settings teaches you to recognize the aircrafts by the format.
BTW - I dont use icons at all - and dont play in online servers that allow then.
Sokol1