I'm not sure if this is intended but on the MMU series, instead of two sources of the DHCs bolts, there's only one source of all cannon weapons coming from the middle.

Instead of this: /\

There is this: |

It does the same with the Phaser Quad Cannons, but I think this was intentional. Same with the DBB, really cool effect, the beams are really close together, looks like something out of the original series or the movies.