I made an upgrade to be purchased by pirates so they have less poopy fighters to raid with.
I started with a captured Isanth hull, stripped it out, made the power core way more efficient, gave it more powerful guns, additional belly guns, stuffed it with shields, more thrusters and replaced the hull with hardened hull with a new design and camo like pattern.
It ended up three blocks longer than the normal Isanth, has 105 mass, 136.5 thrust, 20000 power, 16099.8 e/sec, 14894 shields at 993 s/sec.
Each of the two main guns defaults to 191 damage, 592 distance, 214.6 reload. Each belly gun defaults to 62 damage, 388 distance, 261.8 reload.
Still not really a challenge to larger ships, but they\'re markedly more potent when they come in clouds.