Baltic Map, A47, tried to get LVTs in for resupply . . . noticed I was over grass, but the LVT still had a wake . . . then I hit the "wall" and started spinning in circles above and below the ground. Same thing happened to LTARkilz and to a guy named Munny. Munny somehow ended up on dry land after spinning / bouncing for about 45 seconds.
I have some film of what happened if it will help.