[X] Overwhelming Firepower
I was already pretty much for this option when I made my own post about the flaws of David and Goliath and on the virtue of alpha-strikes on the previous page. Constructing a little more from what Aleph said in her post, not only is the brute-force approach likely the right solution here, we are also in the position to effectively employ it.
While our forces main thrust is currently either closely following or rapidly catching up with Piero, the enemy is still considerably out of position, and what piece-meal troops besides the cybertank and the Shin Godzilla they've managed to gather have been dispatched quite swiftly. And while their super-units are dangerous concentrations might, they haven't managed to deploy them together which would have made them
far more difficult to deal with, and thus they are
fragile when alone, metaphorically speaking. Take them out, and the rest will crumple shortly afterwards.
And most importantly, not only is the spearhead of Piero and our super-soldiers and heavy vehicles with equally heavy weapons following tightly behind, focused just where we need them, Piero's tactics have given us much better
concentration of force locally. Things will also
keep this way if we keep destroying the local forces at the rate that the reinforcements can't catch up.
And while Christos may have dissed using armies instead of knives and such to accomplish your goals, the basic principles he thaught still hold true even in situations like this.
"So keep this in mind, men and women of the Euthanatos. Keep in mind the mistake the steelheads, the Technocracy, always make. They think firepower decides a war of ideas. They are wrong. What decides a war is positioning, and as experts in Fate, you understand that better than anyone else."