Next, I'll add in a couple basic cylinders and cubes at the top to fill in the hull and represent the equipment up there:
Then, I'll do the same for the navigation array at the front:
At the back, I'll add a couple of beveled cubes and cylinders to represent the engine area:
I'll also add some basic shapes in for the grappling gun on the port side:
And the missile launcher on the starboard side:
I'll block out some basic ...