Player is able to get stuck within Rock faces. The rock faces that are directly located North of the car wrecks on the North Road West of Sinistok can be glitched into. A player cannot directly walk up onto these rocks to position in an "overwatch" to the blockade on the North Road, whether walking forards or backwards or in any crouching or laying position; But if you are to run up to the rock face and jump you glitch into the rocks as I found out. I do not know at presently, If your body from the knees upwards are above the rock face, if you can get back out of the rock face (my suspicion is you should be able to on this). On the other hand, if you lay down (pressing Z) and your entire body goes underneath in the rock face, as I have found out, you cannot get back out. I need to test more of this to see what situations occur depending on the steps I take but at present have unsuccessfully managed to free myself.