SMGS

MP5K

 * Unlocked: at Start
 * Starting Ammo: 120 (upgradeable to 150)
 * Max ammo: 180
 * Magazine size: 30 (upgradeable to 45)
 * Unlock ballistic tip level: 5
 * Unlock more ammo level: 8
 * Unlock extended mags level: 12
 * Range: 57-83
 * Damage: 20-30

UMP45

 * Starting ammo: 128 (upgradeable to 160)
 * Max ammo: 192
 * Magazine size: 32 (upgradeable to 48)
 * Unlock level: 15
 * Unlock ballistic tip level: 22
 * Unlock more ammo level: 27
 * Unlock extended mags level: 35
 * Range: 48-64
 * Damage: 25-35

Vector

 * Starting ammo: 120 (upgradeable to 150)
 * Max ammo: 180
 * Magazine size: 30 (upgradeable to 45)
 * Unlock level: 30
 * Unlock ballistic tip level: 35
 * Unlock more ammo level: 40
 * Unlock extended mags level: 43
 * Range: 48-64
 * Damage:25-35

Description
SMGs are useful starting weapons for killing other players in a rush, They also have a decent rate of fire and damage. But their inaccurate beyond close range and they don't do much if the player doesn't control the recoil on the gun.