Not everyone can be good at FPS games. You need to learn some tactics to become a great FPS gamer. In the beginning, you will experience some embarrassing killing footage and misclicks. Slowly, you will learn from your mistakes. Here are some tips for you.
Learn the map
Map knowledge is important as it is going to tell you about the location of your power-ups, health packs, resupply of ammo, etc. For games like Call of Duty or Battlefield, the map will let you find out the enemy spawn point and also tell you where your teammates are.
Find a gun
You should select a weapon with which you are comfortable. You should use a gun that you like and smoothly handle. Stick to the same gun and try to master it. Get used to the play style and then keep on refining your technique.
Using blind spot
When you come across a blind spot, such as a corner, increase your volume. Listen so that you can hear is someone is approaching. If you know that someone is there, go all in and surprise your enemy.
The best time to throw a grenade is when you have your team with you. Only toss a grenade when you are sure that you can kill one of more people.
You should target whoever is facing you first. It is not necessary to shoot the person who is closer to you. You should try to line up your targets so that after killing one you can move to your next targets.
Practice these tactics and soon you will become a master in this game. You should have the patience and concentration to improve your gaming techniques.