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Vegas Vegas (PSP) Vegas 2 Siege

"FBI SWAT submachine gun with high stopping power. Use burst fire in medium range for accuracy."
— In-game description

The UMP45 is a submachine gun featured in Tom Clancy's Rainbow Six Siege. It is available for use by the FBI SWAT Operators Castle and Pulse.


Similar to the 9mm C1, the UMP45 is a slow-firing submachine gun. It is, however, easy to control thanks to said fire rate and the gentle recoil.


  • Low recoil per shot
  • Versatile attachments
  • Can equip all attachments without significant drawbacks


  • Low rate of fire
  • Low damage per shot
  • Weak suppressor damage
  • Harsh damage dropoff
  • Low magazine capacity

Weapon Attachments

Under Barrel



  • In some stills, the UMP45 is equipped with a Holographic Sight or a Reflex Sight, a Suppressor and a Vertical Grip.
  • When performing an empty reload, the bolt magically locks back itself. A more accurate way to model the reload animation would be either having the player to do exactly the same as reloading an MP5 in the game or having the player to press the bolt release after inserting a magazine.

Patch Changes

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