Weapon groups: 1. 2x cGR 2. 2x HLL + 2x cERML 3. 2x HLL 4. 2x cERML I take everything from the Survival tree, so the armour values will go up a bit. While the cooling efficiency looks ok at 41%, the reality is, you can't perform 2 running alphas on heat neutral maps without taking 5/5 Heat Containment and a handful if Heat Gen skill nodes. Its really on the edge. Thus the need to have every weapon pair in its own firing group. Still, gets me a fair number of KMDDs even if I don't get high damage or the kills.