Conqueror is a medium assault cruiser. They are like an upgraded version of Destroyers, and are a casual part of a T2 naval strike force. Equipped with a medium-range plasma cannon, two light laser turrets and a depth charge launcher, they are very versatile.
They are the fastest T2 ship, and it is useful to rush your enemy with a few of them at the beginning of T2 sea battle stage. They can easily take out any T1 units, and offer very good protection against hovercrafts.