this being my 2nd creation...the M2-A1 RHINO LBS is also a Havasian tank...introduced a good 5 years after the Grizzley..the Rhino was meant to not replace the proven grizzley, but to add a greater force to the military. the Rhino possesing a Artillery class main cannon...the Blastech LRAC-210 210mm artillery cannon...is capable of not only extreme anti-tank, and conventional artillery barages, but can also hit targets in Earths orbit...being that it is a railgun...the amount of ammo carried by the tank is considerable.
better than the Grizzley, but this still needs detail and matching colors. also, it looks a bit boxy. you should make it shorter, take off the wheels, and the castle wall things, use regular slanted pieces on the edges to make it smoother and get matching colors. but you should do all the other things before geting the colors good.