The shrimp is a Macpherson class Modern Dreadnought Battlecruiser with all the latest technology and a bit more eg. Cloak, AAA guns, AA flak, tomahawk cruise missiles, AS guns and AS+AL missiles.
It is the best fighting ship in the world and the sea. Only 5 of the 150 entrants get in after 5 years of training. Every 2 months entry's open but sometimes only 1 or 0 people get in! The ship is its own country as well so entrants are international. The ship has been through thousands of missions so far risking everything to keep the world safe. Sometimes the mission includes sneaking on a enemy ship full of nukes by PRAWN stealth black hawk or the SHRIMP vs 44 vesels of the enemy fleet but returning victorious. Yeah.... that sort of thing.