A variation of one of my favourite Marauder builds (3 LPL and 2 SRM6-A). Nice punch at mid range and some fast-firing (up to 27% less cooldown in case you decide to use the module) SRMs to add extra love at short range. All that while keeping a pretty good speed, cooling efficiency, and asymmetric weapons for extra shielding and corner peaking. LPLs could be all mounted in the torsos, but I feel much more comfortable with one on the arm. In a similar way, a third SRM4-A (or three SRM6) could be mounted, but I should need to sacrifice too much speed (and heat) for my taste. Also, I find the two SRM4-A superior to both, three regular SRM4 or two SRM6 on this mech.
Superior but not worth the two extra tons and two slots. You have better results using those on AMS and some armor or engine.