If they make the tanks realistic sure, but the problem is tanks can get pretty boring, so they'd have to come up with something like Saints Row 3 did, in that game tanks can literally just roll over cars crushing them. Although what I would love to see if we get to face the national guard in the game, I'd love to see those military 4 by 4 kinda lookin thing (noob with cars really) where they have a machine gun on top where the soldier can come out at the top shooting you with it while they chase you