This is the original Tropica Attackboat, and even though it's the oldest it still packs a punch and will blow enemies to bits.

This was designed when the MST was still in experimental stages, and it was at the time the best naval turret around, so putting 2 on a ship, adding some fore torps and a dense AA pattern and you have a fierce ship.  It has a dense AA pattern to stop enemy fighters, fore torps to hole enemy ships and dual MST turrets to hand out a beating to enemies.