we will need bearing for long distance travel a few degrees error can magnify quite quickly over range Im not sure its particularly important to the Tactical officer other then possibly to distinguish between unknowns or groups of enemy. I recorded a video of me looking at the image for the first time and verbiliseing the thoughts I was haveing as best I could. I’ve uploaded it here I should also add that you have answered a few of my thoughts already. I deliberately went in blind.