IMO this adds the most realism to the sim. Nothing worse than attacking a bunch of dots with a mile of characters after each one. All I like is a dot (at 20km) with the type (at about 10km which is pretty realistic). You don't need range because with todays graphics quality you can judge that pretty good. I don't really care about the ID of enemy planes and I set the ID range of my own side at 2km. Now you don't have a sky full of numbers and letters buzzing around - just a dot and the type.
I've cut and pasted this from a post I saw some time ago (sorry I can't remember who from) and it works like a charm
If you always use the same icon settings there is an easy method that means you don't need to enter the command/s every time you load a mission.
First you create a new file in your IL2 directory called icons.rcu (create it in notepad and ensure it doesn't end up with a .txt suffix) and enter your mp_dotrange commands inside. Here is an example:
mp_dotrange FRIENDLY DOT 15.000 COLOR 0.005 RANGE 0.005 TYPE 6.000 ID 0.005 NAME 0.005
mp_dotrange FOE DOT 15.000 COLOR 0.500 RANGE 0.005 TYPE 6.000 ID 0.005 NAME 0.005
timeout 60000 file icons.rcu
The last line makes the file reload roughly every 60 seconds.
Then you add this line to the end of your rcu file:
@file icons.rcu
what it means :
mp_dotrange FRIENDLY DOT 20.000 COLOR 10.00 RANGE 0.005 TYPE 8.000 ID 0.2 NAME 0.5
means for friendly aircraft you see the dot at 20km, the color at 10km, a numerical range is not shown, the aircraft type at 8km, the aircraft's number at 200m, and the pilot's name at 500m