This is a what-if collaboration between the Somataw and Vaygr from Homeworld.
The Big gun is supposed to be some heavy EMP canon and there is a light brick lightning up the trans-blue scala part in the rear which is meant to be the main core protected by a strong magnetic field. All the antennas are in fact gyro-stabilizers in order to make the vessel flyable in any atmosphere and any weather conditions.
I landed here on your MOC page by pure accident, but I'm so glad I did. Outstanding work. Spot on genius. Please come by my MOCpage some time and pay me a visit. I look forward to seeing more of your work.