What is the Best gun to use in Socom Confrontation?

What is the best possible gun in Socom Confrontation, and if you have to unlock it please include that in your answer as well please!
Add me, it's GameAddikt, just got Socom Confrontation and I love it!

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).