Tactical Knife

The  is a weapon attachment in Call of Duty: Modern Warfare 2 for handguns. It allows the character to hold both a pistol and a knife at the same time, letting the player stab about twice as fast. The Tactical Knife can be used with all handguns, although in the single player campaign it is only used with the USP .45. The knife is held using the Harries technique, which is mainly used to hold a flashlight over the area where the bullet could possibly hit. .

There is no animation or model for the Tactical Knife from another player's perspective; all they will see is the player (who is using the Tactical Knife) holding the handgun normally, and performing a standard knife attack when stabbing.

The ability to knife faster and more frequently is advantageous in close quarters combat. Players will often combine the Tactical Knife with Marathon, Lightweight and either Commando or Ninja perks to create a fast, specialised melee class.

Trivia

 * In early demonstration videos, such as the Cliffhanger video, the knife user slashed with it. In the final version, the user stabs with the knife. This is likely because stabbing is a quicker motion than slashing and produces more lethal results.
 * In 3rd person you can see you don't stab how it shows in 1st person but regularly (Slash)
 * The final version of the Tactical Knife appears to be bulkier and darker. The serrated edge of the knife also flipped from the original version. The final Tactical Knife seems to be used (in the picture above the edges are a lighter shade of gray, indicating possible wear from use.)
 * Though many believe it to be an instant death upon contact it may be possible to survive a stab from the tactical knife, from the stabbing player's perspective they must stab the enemy and then remove the knife to kill them, if the attacking person takes enough damage to kill them while they are going through the stabbing motion, even if they have already stabbed the enemy and are about to remove the knife to complete the action they will die and the defending person will take no damage.