A similar weapon setup grew quite popular recently on the Timberwolf chassis, initially posted as the "Rip N Tear" by @Dagonus. This is the big brother of that build in my mind. It's slower, has fewer JJs, but more DHS, more armor, and more firepower and considerably more sustained DPS due to the added LBX10. As an alternative, you can up the engine to a 360 for +7 kph, plus an extra JJ (or ton of ammo), but at the loss of 3 DHS. I personally don't know that the extra mobility is worth losing heat efficiency, and thus sustained DPS. But with dual-LBX10, this thing definitely has enough sustained DPS to work with, so it could prove quite viable.