Always use vehicles while moving in an open place
Move in vehicles
This is the most important point that the beginners should keep in mind. While moving in an open place, use a vehicle like a car or buggy that can be easily found in the garage or in the roads. If you walk around freely in the open, enemies might spot you and defeat you instantly even before you can take a cover to hide from them. However, if you spot an enemy while travelling in the vehicle, do not stop the vehicle right in front of them, instead fire after taking a cover.