The UMP Submachine Gun is a powerful yet lightweight submachine gun that was first introduced under the name ".45 SMG" in SWAT 4. Designed as Heckler & Koch's successor to the MP5 line of submachine guns, it retains the 30-round magazine but bolsters the 9x19mm round to a .45 ACP, capable of punching through armor.
The .45 caliber submachinegun is comparable to the 9mm SMG in almost every way. Built largely of glass-fiber reinforced polymers, this lightweight sub-machine gun provides the same reliability as the 9mm model, but with the added punch of the larger .45 caliber round. The heavy bullet provides superior penetration of armored targets with FMJ rounds compared to its 9mm brethren, despite having a lower muzzle velocity and slower cyclical rate of fire. This model is equipped with a fire mode selector allowing semi-automatic and fully automatic firing modes.
Compared to the MP5A4 SMG, it is lighter, but has a larger magazine (which actually makes it heavier). The bulky .45 bullet in a light frame makes recoil difficult to control, however this is mitigated with the vertical foregrip. In vanilla games, the weapon has Fully Automatic and Semi-Automatic firing. In SWAT: Elite Force, the weapon gains a 2-round burst firing mode to match its real-world counterpart. It is equipped with a tactical flashlight.
|SWAT 4 Weapons|
|SWAT 4||Assault Rifles||Colt M4A1 Carbine - AKM Assault Rifle - G36C Assault Rifle|
|Less Lethal||Less Lethal Nova - Pepper-ball Gun - Taser Stun Gun|
|Pistols||Colt Python - Colt M1911 (VIP Colt M1911) - Glock 17|
|Shotguns||Benelli Nova - Benelli M4 Super 90|
|Submachine Guns||MP5A4 SMG (Suppressed MP5A4 SMG) - UMP SMG - Suppressed Uzi|
|TSS||Grenade Launchers||HK69 Grenade Launcher|
|Less Lethal||Cobra Stun Gun|
|Light Machine Guns||M249 SAW Light Machine Gun|
|Marksman Rifles||Colt Accurized Rifle|
|Submachine Guns||FN P90|
|SEF||Assault Rifles||AKs-74u - FN FAL - Colt M16A2 Assault Rifle (Suppressed Colt M16A2 Assault Rifle) - SG552 Commando (Suppressed SG552 Commando) - HK33A2 - SCAR-H (Suppressed SCAR-H) - Suppressed M4A1 Carbine - Suppressed G36C Assault Rifle|
|Grenade Launchers||ARWEN 37|
|Machine Pistols||Glock 18 - MP5KA4 (Suppressed MP5KA4)|
|Marksman Rifles||Scoped HK33A2|
|Less Lethal||Less Lethal M870|
|Pistols||Browning Hi-Power (Suppressed Browning Hi-Power) - P226 (Suppressed P226) - Glock 19 - XDM|
|Shotguns||Remington M870 (Remington M870 Breaching) - Benelli M1 Super 90|
|Submachine Guns||Colt Model 635 (Suppressed Colt Model 635) - MP5SD6 SMG - Suppressed UMP SMG - MP5KA4 SMG (Suppressed MP5KA4 SMG) - Suppressed FN P90|