This bug since OFP. If you drive up close to the wall and out of the car you show up on the other side of the wall.
- Legacy ID
In description and this video http://www.youtube.com/watch?v=90ZMPZ0ngA8
On one occassion I've even seen somebody using this on a multiplayer server to enter the base I had build, it was pretty annoying if you ask me because he literally spawned right next to me.
That was on ArmA2 btw.