The UMP Submachine Gun (known in SWAT 4 as the ".45 SMG") is a powerful yet lightweight submachine gun. 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.
Compared to the MP5A4 SMG, it is lighter, but has a heavier 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 and TSS, the weapon has Fully Automatic and Semi-Automatic firing. In 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|
|Submachine Guns||MP5A4 SMG (Suppressed MP5A4 SMG) - UMP SMG - Suppressed Uzi|
|Shotguns||Benelli Nova - Benelli M4Super90|
|Pistols||Colt Python - Colt M1911 (VIP Colt M1911) - Glock 18|
|Less Lethal||Less Lethal Nova - Pepperball Gun - Taser Stun Gun|
|TSS||Submachine Guns||FN P90 - TEC-DC9|
|Less Lethal||HK69 Grenade Launcher - Cobra Stun Gun|
|Other||M249 SAW Light Machine Gun - Colt Accurized Rifle|
|SEF||Assault Rifles||Colt M16A2 Assault Rifle (Suppressed Colt M16A2 Assault Rifle) - SG552 Commando (Suppressed SG552 Commando) - HK33 (Scoped HK33) - Suppressed M4A1 Carbine - Suppressed G36C Assault Rifle|
|Submachine Guns||MP5SD6 SMG - Suppressed UMP SMG - MP5KA4 SMG (Suppressed MP5KA4 SMG)|
|Shotguns||Remington M870 (Remington M870 Breaching)|
|Pistols||Browning Hi-Power (Suppressed Browning Hi-Power) - P226 (Suppressed P226)|
|Less Lethal||ARWEN 37 - Less Lethal M870|