When I broke my right hand I did this exact setup but with only my left hand.
That isn’t really mansplaining, that is more of an ill informed person trying to explain why his missinformation is correct. Anyone can do that.
I was playing the game and I created a sniper who has 99% dead eye shots and sometimes 100% with armor ignoring rounds. That to me is how to kill sectopods. I never really faced one, I just left the mission after completing part of the mission