Looks quite nice!
But isn't it more of a combat vehicle or APC? Tanks generally have weapons, don't they?
Tanks are generally more armored than any other vehicle on the field and have fully traversing turrets.
And yes they all have some form of cannon.
I would say this is more like a heavy APC or a smaller combat vehicle.
I do think you should make the windows on the front smaller. Any anti tanks or anti armor weapon could go right through them.
