They were supposed to be further behind rather than above, but I see how that can be confusing
I sort of figured that may have been the intention, but I think what was confusing the image was the way the guns (I assume those round metallic thingies are guns?) were set. The guns closest to the treads look like they should be sitting on top of the central portion, and the tread sections appeared to follow their vertical height, hence the confusion.

New one nixes the confusion, but now the construction seems at odds with DDP's style (horizontally elongated, as opposed to chunky, or vertically elongated).
The techy bits look awesome though.