I have two "Nosferatu" chassis that are basically impossible to destroy. They could walk into your midst, lay punches and TAG, fire arrays of short-range weaponry, relay C3 back to its mates all the while neutralizing your ECM and putting you under its influence with their own triple-redundant ECCMs. Destroying the head (which can withstand an AC20 blast) will not put it out of commission. You have to chew through almost 40 tons of hardened armor and the underlying crit-hardened structure to disable them for good.
Occasional munch can be fun

Oh, did you notice that Battletech now really jumped the shark and introduced superheavy battlemechs? Yup, up to 200 tons of walking steel and weaponry. One of those could theoretically pack 80 tons of hardened armor...
Yeah, I'll stick with my old lvl2. Fu
ck the Jihad and all its changes.