XL225 to outrun most other lights 2xMPL to be able to hit something at that speed 2xSRM2+quirks+cooldown module for 8.1 DPS of backstabbing fun. More DPS an more accurate than SRM6, yet 1 tonne lighter. 1.06 cycle time means it's perfect for chainfire. Being hit every 0.5 second with 2 exploding rockets is the most aggravating thing since AC2 macros ;-) Less missiles in a salvo means better hitreg and less ammo wasted on misses. Could downgrade MPLs to MLs in exchange for XL240 and extra SRM ammo, but I don't feel it's worth it. MPLs have better hitreg and better heat efficiency.
This is basically what I use for this variant. Edit: Oops, I meant to say this is basically what I use for the 1D variant. The SRMs are stacked in the chest so if you lose the arms, the missles are still available.