What is Scorpion Tank?

A slow-rolling tank in Halo that can house 1 driver and seats 4 (2 on each tred). It has a full 360° tilt-rotor upon which its weaponry is mounted. Its primary weapon is a powerful mortar that recharges every 5 seconds and its secondary weapon is an inaccurate machine gun that is essentially equivelant to 2 assault rifles being fired simultaneously.