The MP7A1 is a gun featured in the game and appears as part of the "Hamilton SMG" series. The default variant is the "SMX". The improved model is called "Vigilance" which holds +2 rounds and has a slightly better accuracy. The ultimate variant is the "Patriot" with a little bit better attributes.The default ammo capacity is 30 rounds what can be upgraded to 42. This gun can also be dual-wielded.