This happen me too, south of Chalkeia 203111, the bridge with the metal barrier on the sides, if you it them of if you drive on it the bridge will disappear/collapse.
This happen with vehicle bigger then cars (Trucks, Tank).

This is the bugged bridge:

http://i1204.photobucket.com/albums/bb409/privitan/ARMA3%20BUGS/arma3BuggedBridge800x450.jpg

I encountered this as well.

I found this problem too. If kneels down and bring you down again, you can hear the sound of footsteps as if you were walking.

To reproduce it:

1. put a soldier by editor and hit preview to control your soldier
2. hit "X" on keyboard to kneel
3. hit "CTRL+S" on keyoard to kneel down a bit

Now don't move and you will hear the footsteps.
The sound reproduced depends on the underlying soil.

...and stars should not become bigger when you ZOOM! They look like planets if you ZOOM ;)

Ther is a script/mod yet for this, it is called "TPWCAS", but will be a nice feature to be implemented in the vanilla version.

DON'T TAKE IT IN COSIDERATION IT'S WAS MY MISTAKES. I WAS CALLING THE OLDS ARMA 2 ICON THAT'S GENERETATE THE ERROR.

SORRY

Ai driver also try to drive over rocks and if they hit the rocks stuck on them for minutes or forever.