I fly Light Fighters often. Mainly Decruion (Before Arwing) and Arrow.
Support Ships in clusters.
Shieldbusters/Mines/CDs are your best friends. So is your agility.
Mines will be your main weapon against anything bigger really as well as shield busters.
4 Guns 2-8 and 2-9 with the power supply can only do so much.
Head on Combat will get you nowhere besides being a nuisance in jousts.
I can bring an arrow into Conn. if anyone cares for training.
I believe the Sea Serpent is rather poor, even for a LF. The only really competent ones to my belief are the Liberator, Loki, Nomad Morph/Assassin, and possibly some of the Kusari ones. That said, the only one I've really spent time in is the Liberator so I pretty much expect all others to be at that standard.
If you have a good aim, you might try magma hammers with mines of your choice, on a Liberator of course.