If artilery on the ground, would it be stationary or able to move and plant its self? Well then how would they look like? for TR a big hull with a big cannon? for NC a smaller vanguard but with a bigger cannon? for vanu justa satalite?
And if ya gota bomber, just make it like a flying fortress high bomber, planetside style!
Like a crew of 9 or sumtin: pilot, bomber/bubble gunner, nose gunner, rear gunner, bubble gunner, 2 top gunner (waterver its called), 2 side gunners. A flying fortress.