It would be cool to have a Container train - the front would be like the trains but the "tail" would be like two container ship lined up one behind the other.
And it be cool if it could bend. :D
it would get diced up pretty quick in fight due to its large shadow. and with the bending it would make it a whole lot more easy to tail (literally!)
fot weapons you would need them top, side, bottom, front and rear.
The twin tail thing. im up for it, but consider how much of a target it would be.
here are my ratings for it
Cargo: 10/10
weapons:6 & 1/2
Targeting it (the higher the worse): 9