The B3 Instigator, simply put, is a "jack of all trades"; (but master of none) fighter. BT3 designers took the "less structure for more weapons"; approach here. Nicknamed "flying wing"; by BT3 vets, the design incorporates a sort of circuit-board approach; the wing structure is a platform for weapons, sensor arrays, and the such to be be installed on top, while connections are run to each.
Visible connections and the wide area necessitated the shield generator seen near the middle. Attacks on large capital ships or ground installations is made possible by the large gamma cannon while attacks to small craft is via the rotary laser guns near the middle.
The cockpit comes with two small cargo holds for a bit of storage. Short and long range sensor arrays are on the opposite end; engine is in rear.