Nice work very smooth! I disagree with Rahl that the scorpion tanks are “too cliche” but I think that the tail somehow makes them less menacing and more comical. I think the design would work better it it was a little more like a tank with a “main turret” replacing the tail and carrying a larger main weapon and would have the added benefit of lowering the height and frontal profile, thus making them a smaller target.
Still, nice work all round, very professional, keep it up.
Edit: Just watched the video and it was great, actually the scorpion designed as is worked very well in that specific context and huge scale, the only thing that slightly irked me stylistically was the hero characters blue “anime hair”. On the whole a really well designed and professional piece of work though, kudos to everyone involved.