The "Unicorn" is a touch smaller than most other Giant War Beetles. She's only as big as a small suburb.
She can ram you with her huge unicorn-like horn! Also, it shoots big friggin' rockets! She has acidic tentacles all over her body, and steely-sharp pincers all over her feet!
You can't see the under-carriage, but down there is a bunch of harnesses for machine gunners!