I was playing Halo and using HMT to access parts of the maps that were normally unreachable. I got on top of the map on like the first level when you land on map and all of a sudden my character froze. I was able to swivel around but I couldn't move and I couldn't shoot or do anything else. does anyone know why this happens and how I can fix it. I saw banshees on top of the place I was trying to get to but when I move to high up there I freeze.