I know, it's a bit slow. But that damage and heat efficiency are top-notch. This thing will guard your keepsakes, no questions asked. Ammo reliant, but if you drop a ton of something you can pick up a Laser in the arm. Between the pinpoint ranged damage of the double-Gauss, and the massive burst of the ATMs at close-mid range, this thing is equipped for any occasion. If they get too close for the ATMs minimum range, you've still got a pair of Gauss to pump into their face. If ECM is a concern, you can pick up a TAG or a cAP, by dropping a ton of ammo.
I feel like the MCII-2 version of this is better, due to having the Gauss hardpoints having better convergence(being both on the arms), and one of them being a bit higher mount as a result too.