The Bluenose 2, from Space Engineers

For anyone familiar with the game, its 176k pcu, and 350 meters long, weighing in at 150,000 tons. Took some inspirations from The Expanse, as well as UNSC ships from Halo.

Its for sure a battleship, with 24 forward facing railguns, as well as 2 more on the custom turret, and about 50 of each gatling, assault and artillery cannons. Several hundred gyros, and about 120 thrusters, all prototech, so despite its size and armor, it moves pretty well. Also has a large hanger bay with room for half a dozen fighters or so, and also 6 tubes which can be used for missles, or more fighters, or escape pods.