Rapid Fire

Rapid Fire is an attachment featured in Call of Duty: Modern Warfare 2, Call of Duty: Black Ops, and Call of Duty: Modern Warfare 3. It is the replacement for Double Tap and has exactly the same effect; the delay between shots is decreased, effectively increasing the weapon's rate of fire.

Call of Duty: Modern Warfare 2
Rapid Fire is unlocked when the Marksman I challenge is completed for any SMG. Obtaining 30 kills with the Rapid Fire attachment will unlock the Akimbo attachment.

Applicable Weapons

 * MP5K
 * UMP45
 * Vector
 * P90
 * Mini-Uzi

Call of Duty: Black Ops
Rapid Fire is available for all SMGs, costing. It is the same as its Modern Warfare 2 counterpart. It is the only way that base damage-per-second can be increased in any way in Call of Duty: Black Ops due to the removal of the Stopping Power perk, and is therefore very popular on most SMGs.

Applicable Weapons

 * Uzi
 * MP5K
 * Skorpion
 * AK74u
 * MAC11
 * PM63
 * MPL
 * Spectre
 * Kiparis

Call of Duty: Modern Warfare 3
Rapid fire is nearly identical in performance to previous games. However it does not increase rate fire as much as it did in previous Call of Duty titles (25% vs 33% increase in RoF). Furthermore, it is now available for Light Machine Guns and burst-fire Assault Rifles in addition to Submachine guns. It is also available for the MK14, and works by raising its fire rate cap.

Applicable Weapons

 * MP5
 * UMP45
 * PP90M1
 * P90
 * PM-9
 * MP7
 * L86 LSW
 * MG36
 * PKP Pecheneg
 * MK46
 * M60E4
 * M16A4
 * Type 95
 * MK14

Call of Duty: Modern Warfare 2

 * In Modern Warfare 2, Rapid Fire's Create-a-Class icon is also used as an emblem unlocked for completing the challenge "Mach 5."

Call of Duty: Black Ops

 * In Black Ops, Rapid Fire shares the same Create-a-Class icon as the Full-Auto Upgrade attachment for the CZ75.
 * The Death Machine power-up in Zombies looks like the Rapid Fire attachment symbol.
 * Rapid Fire cannot be used with Extended Mags, Dual Wield, Dual Mags, or an underbarrel attachment via Warlord in Black Ops.

Call of Duty: Modern Warfare 3

 * Rapid Fire for the MK14 has a unique effect; it actually significantly increases its firecap instead of increasing its rate of fire.