Compasses and map tools: baseplate compasses with a transparent platform, military compasses in an aluminium frame, mirror sighting compasses (M-Tac Witch Mirror) and protractors and rulers for map work. Almost all are M-Tac, one Mil-Tec with a lid.
If you work with a paper map, choose a compass with a transparent baseplate and a protractor. A mirror helps with accurate sighting on a distant point.
Metal and electronics pull the needle off, so take your reading away from a weapon, a vehicle or power lines. In clear ground the reading is accurate.
A baseplate compass has a transparent platform with a ruler and a protractor, so you plot a bearing straight onto the map. A plain compass only shows direction.
