One of my best robots: I present you my Nuclear Machine! ^^ Please look at the first picture above for its CRF preview. I edited it half the time without using the mirror.
3 weapons which are useful both in offense and defense: 5 Blasters, 1 Guardian and 1 Goliathon! I added also an EMP module and 4 hover blades inside, if the sprinter legs Hermes are destroyed (see the 6th image to view the situation without them).
So test it and enjoy, but without taking your own risks... Good luck.