I realize that the Outrider was created for a video game, rather than for the films... but if you're like me, the ginormous cannons on the stock YT-2400 are beyond stupid--especially in comparison to the turrets on the Falcon & Decimator. In my opinion, the cannons (and those thick, curved hull edges) make the ship feel more like a toy than a movie model... or at least, a small based ship blown up to large scale.
Here's my ultra-fast solution:
As you can see, some quick work with some clippers and you're 90% there. A couple quick divots with a pointed object and some black wash, and the cannons--while still a lot bulkier than the turrets on other ships--are a lot more plausible as HLC's.
In any case, I like 'em a lot better this way.