Ideally you will never need lesmok for a metamidion. Even with a gunner you rush into greased range asap (maybe start with heavy). But if you wanna bring lesmok and start off with it then ok bring spanner mallet buff lesmok. For all intents and purposes avoid lesmok gat, you're better off with hades.
The best use for heavy is not against components, but against armor. Use it to maximize damage only to armor. Spanner mallet buff heavy clip is effective because one buffed clip is even enough to break junker armor while being repaired with mallet. Buffed regular can 1 clip buffed galleon armor with mallet!
When I flew meta with TT, it was often spanner mallet buff for the gunner with greased or heavy, heavy for Junkers and Squids, greased for the rest of the world.
But on the point of load outs again...
Roberts, yes sometimes the pilot may not be making the best choices, or other times there may be something you didn't take into account. For example I will avoid a wrench buff engineer when against blenders and Hwachas, because the wrench is sometimes just not enough to get the ship out of trouble, is it possible that you were against such and the pilot wanted to prevent such disaster?
Just because you think you know "right" does not mean you always do, even if "your way" was successful, that could just be luck, or it could be the pilot didn't have optimal loadouts and you were right, but claiming arrogance while showing such does not make friends.. Also looking for trivial reasons to dislike people makes.it harder on yourself to take part in social games matey