Always keep an eye to your radar in the lower right corner of your screen to increase your situational awareness. It will always display the Northern heading and your Bike’s location. Icons for nearby Locations or missions will also appear as long as they’re within your radar’s range. If you select a Storyline or location marker, you’ll also be able to see the GPS trail leading to the selection location.
It has three circles; a red arc in the outer circle means that there’s an enemy in that direction at a considerable distance, reds in the middle circle means there are enemies in medium distance. (they can detect you if they have line of sight) while the inner circle will turn red if there are enemies within melee range. This can be used to detect enemies behind cover or walls.
While inside camps, the mini-Map will display the general direction of shops and NPCs who will give you missions.
We have questions and answers related to this topic which may also help you: