I think there have been some misconceptions about the nature of the 'hovertank'. It is a conventional hovercraft, floating on a cushion of air created by a series of impellers driven by a turbine engine, ala the Harrier jet. It 'flies' about 6 to 8 inches above the ground, but can move very fast across smooth surfaces, such as water, grassland and the like. These vehicles currently exist and are used by the military, some exceding 100 tons in wieght.
It certainly has a variety of weaponry, lethal and overwise on it. It can be assumed to have some sort of net-launching gun, stun grenades, smoke and tear gas launchers and the rest of the gear you could expect on a well stock police SWAT vehicle. It is also armored against small arms fire, and since few xeo-powers are specifically armor piercing, it is fairly effective against their powers as well.
Spotlights, at least 1 mounted machine gun, and possibly something along the lines of light infantry weapons are present. If pictures and diagrams are need, I can scan some junk out of my Battletech Technical Manuals, but I didnt think that was necessary.