Submachine gun

A submachine gun (SMG) is an automatic carbine, designed to fire pistol cartridges. It combines the automatic fire of a machine gun with the portability and smaller cartridge of a pistol. An assault rifle, in contrast, uses an intermediate-power cartridge with more power than a pistol but less than a standard battle rifle. In the pre-BF2 era, submachine guns' iron sights were unusable. Then in BF2 to BF2142, submachine guns' sights were usable until the first Bad Company afd BF1943. But since Bad Company 2, submachine guns' sights were usable again.

Tactics
In the Battlefield series, most or all SMGs are fully-automatic weapons, but can be fired in controlled bursts.

SMGs excel in close-range combat, while possessing more long-range utility than a shotgun. Skilled SMG users can even repel melee attackers.

In some games, the initial shot of an SMG lands directly on the player's crosshair. Repeated short bursts can be used in mid- to long-range combat should a target need to be put down. It is preferable to allow others with more suitable weaponry to engage the target instead.