I can use a compass no problem, was quite surprised to find people on my MIAS course who struggled with it.
What I can’t do, and was rather impressed by was navigate effectively by the stars. On Salisbury plain one night, trudging along in the darkness on our way to defeat the evil greenlandians or whatever our enemy was being called that day, and the mist was so thick you couldn’t see anything at ground level.
We pause for a nav check and speculate on how we will find anything in this. Our young and inexperienced platoon commander announces we will navigate by the stars, to much derision from the rest of the unit. Undeterred he peered at the stars using some sort of wizardry, decided where we were, pointed us in a random direction and announced that in 200m we should meet a fence line that will lead us to the objective. Pacing it out, 200m we meet the fence line and find the objective, magic.
Long story short, we bought him a GPS for when he went off to sandhurst