Is heavy weapons like the Gattlining Laser and Plasma caster considered 2 handed weapons and thusly affected by Commando?

This is something I have been wondering myself.

No. As far as I can tell, the selecting criteria for the perk is the weapon animation or "stance". The perk applies to weapon animations 5 & 6, which I believe are "2handrifle" and "2handautomatic". Miniguns, grenade machinegun, gatling laser, plasmsa caster, all the weapons held low, are part of the "2handhandle" animation set.

-Gunny out.

I see. Was considering a plasma caster using build with all the AP reducers, Math Wrath, Plasma Spaz and Fast Shot for a total of 50% ap cost reduction. Commando would have been a serious help in regaining lost accuracy. Will have to consider the q35 or the multiplas then!