Because it usually gets them an easy kill.
People on your team have their name above them in green. Enemies have red above them. Your allies will always have their name displayed. Enemies' names will appear when you aim at them.
you shoot it.
shoot the enemy
You don't.
the right trigger
Shoot all of your bullets
It is Shoot To Thrill by AC/DC.
just pick a rifle and shoot as much people as you can. you know that.
.....shoot.
Shoot at all of the targets that are green. Don't shoot your men on the ground.
No, you cannot shoot whilst holding a riot shield.
People actually never blow up once you shoot them, single-player or multi-player. Even using grenade launchers. They simply turn into ragdolls.