UMP45

The UMP45 is a submachine gun that appears in Call of Duty: Modern Warfare 2.

Multiplayer
It is generally advisable to use this weapon in conjunction with a Silencer, as it provides no damage reduction. However the iron sights are unfavorable to some as they take up a large portion of the lower screen (while only providing a very short sight base), and due to the slight vertical recoil and muzzle flash, it may be difficult to track targets. For this reason players may choose the Bling perk to add an optic, especially the Holographic Sight or ACOG Scope. While having lower recoil than most SMGs, it has relatively higher recoil than most assault rifles, and the UMP45 blurs the line between the two weapon types. When firing at targets at long range, it is advisable to fire off single shots or 2-round bursts by tapping the trigger. This weapon is favored in stealth builds due to its silenced versatility at all ranges without the need for Stopping Power. Some players find it easy to get headshots with the UMP45, as its recoil will cause the sights to rise to the head when aiming at an enemy's center mass. In short, this SMG is stupidly powerful and is pretty much one of the only weapons anyone uses, since Infinity Ward does nothing to balance any other weapons.

On the pickup icon for the UMP45 it seems to have the longest mag of all SMGs.

The UMP45 is very effective in Hardcore, where it can deal one-shot kills at any distance unless the player is behind cover, has the Last Stand perk or the Final Stand/Painkiller deathstreaks. Because of this, a player could combine a thermal scope and a silencer and use it like an automatic, suppressed sniper rifle.

A popular tactic, both in Hardcore and normal games, is to combine a silenced UMP45 with Marathon, Lightweight, and either Steady Aim, Ninja or Commando. This provides an effective sprinting class that will be able to maintain high damage (and thus reliability), notable speed, and the ability to rival shotguns and knives in close-quarters or to sneak past heartbeat sensors and sound-wary players.

Weapon Attachments

 * Rapid Fire
 * Akimbo
 * Red Dot Sight
 * Holographic Sight
 * Silencer
 * ACOG Scope
 * Thermal Scope
 * FMJ
 * Extended Mags

Trivia

 * An unused piccatinny rail is present on the left of the gun.
 * The first-person model has aspects reversed. The ejector port and selector switch are both on the left side of the gun.
 * Like the G36C in Call of Duty 4 and the P90 in both Modern Warfare games, the magazine has a clear section in the side but the level of load shown is always the same, regardless of how full the players magazine actually is.
 * When a Red Dot Sight or Holographic Sight is attached, the front iron sight is removed.
 * The UMP45 is very similar to the MP40 in Call of Duty: World at War, both being widely used, high powered SMG's with a low rate of fire and 32 rounds per magazine.
 * Camouflages appear dull on the UMP45.

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