and if you still don't understand

when you are in the battlefield, you don't just pop your head out, shoot your enemies, and rely mainly on your bullet-proof vest.

you think, and wait for the right timing. then, you shoot.

and shooting is not just pulling the trigger. you aim with your scope, let the target fall on the dead center of the crosshair. and only after that you pull it.

you try to hide at first. not because you're scared but you patiently wait for the timing.

lastly, you don't attack and if nothing happens, you run away or foolishly defend yourself. you first have to protect your head, your arms, your torso.

i see you open, can i just shoot you in the head?