Rapid Fire

Rapid Fire is an attachment exclusive to submachine guns in Call of Duty: Modern Warfare 2 and Call of Duty: Black Ops, that increases the rate of fire of the gun it is attached to. It is the replacement for Double Tap and has the exact same effect; the delay between shots is decreased by one-fourth, effectively increasing the weapon's rate of fire by one-third. Obtaining 30 kills with the Rapid Fire attachment will unlock the Akimbo attachment. Logically, this attachment adds recoil to the gun when fired in full auto mode. It should be noted that the game weapon stats are wrong. The rate of fire never caps, so there should be no worries in attaching this to a weapon such as the Vector. Rapid Fire works well with Akimbo, leading to some ridiculously fast close to mid-range kills. If combined with Stopping Power, at close to medium ranges it will kill instantly.

Most players overlook Rapid Fire because it increases recoil and SMGs have some of the fastest fire rates anyway. However, it can be used to increase damage-per-second or the increased recoil can be used for easier headshots. It is planned to be in Call of Duty Black Ops.

Tactics

 * It is recommended that the player fires in bursts if attaching Rapid Fire to submachine guns. (Except for the Vector due to its low recoil.)
 * If a player is trying to get the Mach 5 challenge, it's strongly inadvisable to use Rapid Fire due to the higher chance of shots being fired even after the target is dead.
 * If using a high recoil SMG with rapid fire attached such as the MP5K, it's advisable to aim lower than usual to account for the recoil. This is also advisable if the player wants headshots with a low damage SMG.
 * Rapid Fire is used most effectively on the Vector and the Mini-Uzi, as the increase in recoil is still controllable. This can lead to very quick kills, but a shortage of ammo.
 * Using this attachment in combination with Sleight Of Hand may result in ridiculously fast action, due to the quick reloads and fire rate adding a sense of confidence, which encourages a player to move and play faster. Strangely, this is often involuntary. A skilled player may use this to overwhelm enemies with sheer speed of combat.

Trivia

 * You can unlock the Rapid Fire emblem by unlocking Mach 5 challenge (fire entire SMG magazine into enemy without missing).

Applicable Weapons

 * MP5k
 * UMP45
 * Vector
 * P90
 * Mini-Uzi