Gun-Tapping/Weapon Control:
Basically, do not spray like a lunatic. Control your gun. Imagine it is your baby! Now, would you rather smack your baby against the wall or love it with all your heart? That is what I thought. Treat your gun the same way! Do not rage spray with it, but control it! There are many situations which require many different out comes, starting from distant shots to reaction shot in close quarters.

For distant shooting (long-medium distance), gun-tapping and control is the key to beating your opponent. Staying mobile whilst still getting your shots on is a trait which gets you kills. If you are not a professional you should start of with burst shots (max 2-3 bullets). Once these 2-3 bullets have been fired you wait for the gun to reset and you fire again. Always try to aim for the head. If you are not that good yet, aim for the chest. Once you get better and better you should start gun-tapping. Gun-tapping in basics is one shot kill to the head.

If your first hit does not meet the temple move at a "pizza slice" angle where you shoot move a meter to your right or left and tap again (continue until either you are full of bullets or the opponent is killed). When facing enemies close range obviously after missing your first shot you will go into a state I call spray'n'pray, but you can do that with control by learning the spray patterns of different guns. I suggest learning all the guns since you will never know what situation you will face and what gun you might have! Here are some spray patterns!