Here's my take on the CR Battlecruiser, very very very very early stage in development as you can see. just the basic shape, also keep in mine i am simply a beginner şn that kind of stuff.
Do you have a cruiser? And a dreadnought. You need to find something between these two ships and do something similar, but larger than the cruiser and less dreadnought. However, the shape is still the same - the arrowhead/spearhead (I somehow represent the ships of your faction).
Its a good first effort. Try less separate objects though. depending on yoru modeling program the freelancer engine works bes with even simpler models then this.