I've played this mech build the most. I just have an XL300 in mine. I like speed, not ammo. "Everyone Loves it!"- Mech Spot
I actually dropped a ML for more armor, better HE and XL300 without sacrificing the amount of ammo (I have 7 tonnes of Gauss ammo).
This is the config I used for 'mets for the longest time. The only downside to this build is that it kills too quickly and too accurately, so my matches with this build aren't as profitable as some of my other builds.
I had to make an account just to say how much I love this build. I regularly clear 600 damage with this and also hit my PB damage score of 992.