You stick with the assaults and act like one. You could use regular Large Lasers instead of ER's, but I like having the range, and 2 extra heat is justifiable. Being a STD Marauder if you wiggle a bit it's plenty tanky enough to utilize the AC and ML's together, and if you, like I, lose both your arms and the LT, you still have a can of unpleasantness to open on some poor, unsuspecting soul. Considering the speed and maneuverability of a 75 tonner running a 280 engine (not much), positioning is important, and hard enough to fix that I don't consider a JJ to be of much use. But that's preference!