a modest ship that posses a lot of weapons and storage, not the best but certainly not the worst.
quirks as outlined:
self enabling batteries (depending on reactor output),
full equipment,
a prison cell,
repeating coil array for stunning any beast outside the ship,
two engines for maximum efficiency,
two depth charge tubes.
sadly the piping on the ship is lackluster and has some weakpoints
some parts of the submarine have been reinforced with additional armor.