I like that name

I think you could create a series of hulls, all looking like real life tank hulls. For example create a sherman tank hull with medium speed, and good protection against low powered guns, but high powered guns would be more effective against it. Or a tiger tank with medium speed and good protection against normal projectiles but not good against special weapons like isida, firebird, and ricochet.

My idea is for an artillery type turret. Instead of flat trajectory have a high arc trajectory. that way you could fire over buildings and terrain. It would have a type of sight, maybe like the shaft or a light on the ground where the round will hit.