hehe also the place your camera cant go.. is due to smart level desingn. i used my - and I (vertical and horizontal camera clamps,) to block the camera from entering the above and below engenieering stuff, that controlls the crate spawning in this level.
I also Just fixed it by spawning 2 crates every 22 seconds. this is done by a lil machinery you can eaven visit if you examine the whole level.