I have seen many players who take up unnecessary fights whenever they see an enemy player. Fights should be taken if it’s extremely necessary or until you are confident you can take the other guy out. You must be sure of the range on which you are fighting with the enemy and if your weapon is capable enough to deal fatal damage in that particular range. Do not shoot at the enemy in long distances especially if he isn’t aware of you. If you miss by any chance, you will reveal them your location and others who might be sneaking around.