Hmmm, a 12kg robot built by amatures vs Tornado...

I am trying to think of how, realistically, a FW can beat a HW, but Im not getting it. a FW has won a fight against a HW (Demolisher vs Necromancer during a series qualifier), but that was because it outran/out manuevered it and rammed it, and won on aggression. So that would be the best option. something that is faster and more manuverable than tornado is, and a weapon that can cut the side panels, like a vertical disc.