The UMP (Universale Maschinenpistole, German for "Universal Submachine Gun") is a submachine gun developed and manufactured by Heckler & Koch. The UMP is a blowback-operated select-fire submachine gun firing from a closed bolt. It features a polymer stock that is able to be folded for compactness, a paddle-style magazine release, and a handguard that is able to accept accessories, such as vertical foregrips. The barrel is approximately 8 inches long, and there may be rails on top of the receiver to mount optics. As originally designed, the UMP is chambered for larger cartridges (.45 ACP and .40 S&W) than other submachine guns like the MP5, to provide more stopping power against unarmored targets (with slightly lower effectiveness at longer range) than the MP5 (largely offered in 9×19mm, albeit with short-lived production of 10mm Auto and .40 S&W variants). A larger cartridge produces more recoil, and makes control more difficult in fully automatic firing. To mitigate this, the cyclic rate of fire was reduced to 600 rounds/min, which makes it one of the slower firing submachine guns on the market.

Girls' Frontline
Girls' Frontline is a mobile strategy game developed by MICA Team, a Chinese company. It is a moe anthropomorphism game in which the player controls echelons of characters, each of which are based on actual guns. The game was released in Mainland China on 20 May 2016, and in Hong Kong and Taiwan on 18 January 2017. It was also released in South Korea on 30 June 2017. The English version published by SUNBORN Network Technology was released on May 8, 2018. This game is a prequel of another game developed by the same company called Bakery Girls.