Though it's kinda of the point on this build, I don't think the heat efficiency is that necessary, you can trade 3 DHS for 2 AMS with 2t of ammo, which IS relevant in the current meta. 2SL over 1 ML is a choice that I can kinda stand behind, ML have triple the range and almost the same damage but shorter burn time and reload speed with a bit more damage should be better at lights defense.
