About effects inside of vehicles:
We almost have no idea the window is breaked or not, it should be clearly visible from inside, and we should have limited visibility to the outside view. Now we can see through broken glass like its not broken.
Sounds inside vehicles - please increase the volume from the outside sounds, or give me free hand to do this - i can do this for you. Player should hear choppers and every explosion, sound when he is inside car/mrap/truck/chopper(in cargo)/boat. (when there is no helmet limiting outside volume or heavy armor)
Sounds in opened vehicles/without doors should be clear.