This ship is called the Banana MK2 because it was based off of the design for the original Banana, but has more weapons and a bit more armor at the bridge. As a result, it is slightly bigger (especially the bridge). The tail fins are also recolored. It works using Movecraft http://www.planetminecraft.com/mod/movecraft-reloaded---loraxe42s-fork/

It has 2 WST's mounted on the front http://www.planetminecraft.com/project/wst---adjustable-trajectory-turret-for-movecraft-warships/

On the very front of the ship there are 4 5-length torpedo tubes that face forward. Behind the bridge is a rotateable torpedo turret that holds 2 5-length torpedos. 

The MK2 has double the fire guns on the side, with 14 each side. There is an additional 2 on the back to help with axial fire.