USP .45

The USP .45 is a pistol featured in Call of Duty: Modern Warfare and Call of Duty: Modern Warfare 2, as well as Call of Duty: Modern Warfare: Mobilized. It has high range and damage, but very poor accuracy when firing from the hip.

Singleplayer
In single player, the USP .45 is the only sidearm available with silencer. The unsilenced USP .45 appears in F.N.G., Crew Expendable, and Charlie Don't Surf. The silenced USP .45 appears in All Ghillied Up, One Shot One Kill, Ultimatum, All In, and No Fighting In The War Room.

Multiplayer
The USP .45 is frequently used in multiplayer because of its range and high magazine capacity. It has 5 more rounds than the M1911 .45 (in single player, 4 more than in multiplayer) as well as slightly greater range, but it has slightly greater recoil. Due to its range, it is the second most powerful pistol behind the Desert Eagle. Its one major flaw, however, is its hip fire accuracy being much lower than the other pistols while moving. However, the USP .45 has similar accuracy to the M1911 .45.

Attachments

 * Silencer

Singleplayer
In single player, the USP .45 is always found with the Tactical Knife attachment, although it never identifies it in weapon pickup text. The only true variation of the USP .45 found in singleplayer is with suppressor. In campaign, no matter where a USP .45 is obtained, it will always have 72 rounds with it. While breaching a door, any USP .45 the player has in his or her inventory will gain full ammunition (as well as the full magazine) with a maximum of 120 rounds.

Multiplayer
The USP .45 largely retains its low hip fire accuracy while maintaining longer range than the M9. FMJ does not work well with the USP .45 due to its low starting penetration and semi-automatic firing. However, other attachments are just as useful as they would be on other weapons.

In Hardcore, with Stopping Power, the USP .45 can be a one-hit-kill sidearm at any distance. While in close range to close-medium range, USP .45 will still maintain a one-shot kill, even without the Stopping Power Perk.

If used in conjunction with Akimbo, there is a glitch that replaces the knife slash with a fast stab, but the lock on stab remains unaffected, meaning that the glitch has no noticeable effect on gameplay.

Weapon Attachments

 * FMJ
 * Silencer
 * Akimbo
 * Tactical Knife
 * Extended Magazines

Singleplayer
The USP .45 appears in Modern Warfare: Mobilized as one of the two side arms available in-game; the other being the M9. Unlike on the consoles the USP .45 has a 15 round magazine, as opposed to 12 rounds. It's recoil also settles much faster, resulting in more accurate shots. In single player it is also incapable of a one-shot kill at close range, but can kill in 2-3 shots at any range. Aside from this the USP .45 is mostly the same as the console versions. However, the weapon's benefits are short-lived, since the USP is only available to use once in single player in the level, "Needle in a Haystack".

Multiplayer
In multiplayer, the USP .45 is the default side arm for the Coalition faction, making it much more useful due to the extended appearance. However, its power is decreased, taking 3-4 shots to kill, depending on range. Although, when the USP .45 is used with stopping power and FMJ, it can kill in two shots at close range. It can still kill in one shot to the head, something most pistols aren't capable of in multiplayer. On top of this, the USP .45 had terrible hipfire accuracy when moving, being almost as inaccurate as a LMG from the hip. But when stationary, it has near perfect hipfire accuracy (perfect when crouching).

Video
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Trivia

 * The USP .45 is the only weapon (along with the M9) to match its maximum ammunition in both Single Player/Spec Ops and Multiplayer. All other weapons have either much lower or in rare cases much higher maximum ammunition (the remaining handguns, oddly, have higher maximum ammunition).
 * In MW2, on the left side of the gun, it says, "USP .45ACP" in white-gray text, clearly visible if the pistol is on the floor.
 * In all games featuring the USP, it shows the gun with its iron sights slanted to the left.
 * In Multiplayer, akimbo USP's slides will stay back if you use all your ammo. But, if you knife with them, the slides will be set forward then jerk back after the knifing animation.