with it's current armament, it's technically an assault gun. an assault gun is a tank, but without a rotating turret.
regardless, i like it. i especially like the side skirt armor. the bionicle pieces meld very nicely with the tank treads, which is tough to do. although i will admit, i've found plenty of uses for bionicle pieces. i've got a droid specifically designed to flip tanks over that has a gripping device made of some bionicle swords, and a boat that uses some other swords as pontoon-type thingies.