The MP5 is a German submachine gun manufactured by Heckler & Koch. It is famous for its great reliability and excellent accuracy in its class. It is the weapon of choice within the international community of military and law-enforcement special forces. The MP5SD features a very efficient internal sound suppressor and even its trigger mechanism is designed to be silent making it the perfect weapon for quick, stealth actions and close quarter battles.
ArmA 2: Edit
The MP5 is used as personal defense weapons for US Marine pilots in ArmA 2. Its respectable rate of fire and excellent accuracy made it suited for the task. However, its 9x19 mm rounds made the MP5 almost useless in open or prolonged battles against rifle-wielding opponents, and as such downed pilots should try to avoid fighting the enemy whenever possible.
There also exist a silenced MP5 version in the game, presumably for covert operations. While they do not equip any soldier by default, they can be found in the US special weapons box in the editor.
By the time of Operation Arrowhead in 2012, the MP5 seemed to have been replaced by the SCAR-L, at least for the US Army. The SCAR-L is just as accurate while using the more powerful 5.56x45 mm NATO rounds, making it more of a match to other infantry rifles and MP5's counterpart from Russia, the AKS-74.
In-Game Data Edit
ArmA 2: Edit
Cartridge: 9x19 mm
Magazines used: 30-round MP5 magazines (standard and silenced rounds)
Accessories: Iron sights, silencer
Equips: USMC (Pilots only)