But I like the current BH cap line! Am I the only one?
:(
Anyway, here's my suggestion, add a fin on the bottom of the model, have it sweep forward, similar to the planned Gaian VHF's wings, except there would be only one and it would be on the bottom. After that, you'll have a fighter. Texture it, then ask the community what it looks like. Don't try and squeeze it into a shipline or class unless you are very very familiar with that shipline's asthetics.
Overall, this is the best model i've seen you do. It really looks sharp, and futuristic.