Gaijin not putting a Sound change into the game

I’m still waiting for Gaijin to put this
“The sounds of engines and tracks of enemy and allied ground vehicles are now divided into separate groups. Previously, enemy and allied ground vehicles sounded exactly the same, but now the control of enemy and allied vehicle sounds is independent, giving you the ability to increase the sound of enemy vehicles.”
into the game instead of just having in the change log for the latest update…

Friendly engine are literally so loud that i cannot hear a Helicopter flying over me.
Gaijin either finally change it or remove it out of the change log and stop being liars.