@sullen fulcrum
You can modify it like this in you addon config.cpp
Change the inherited class "B_Heli_Transport_01_F" for the class you want to change the dustEffect to
class MyHelyWithDifferentDust : B_Heli_Transport_01_F
{
dustEffect = "HeliDust"; // change by your dust effect.
};
Although I think there are addons in the workshop that does it so if you only want it for your mission you may take a look.
Edit: https://steamcommunity.com/sharedfiles/filedetails/?id=1537745369&searchtext=dustEffect

