The heavy-assault cruiser, an epoch-defining product in the history of human warships, had been called a second generation elite cruiser.
It had firepower and defense that transcended the ships of the same grade, and it was by no means an exaggeration to say that a heavy-assault cruiser was already nearer to battleships, which were two grades above cruisers, in terms of performance while retaining a cruiser's flexibility and speed.
Battleships were what presently made up the main fighting force of the Pan-human Alliance, with its thick armor and strong firepower, which could be quite a threat when exchanging fire in a battle. Meanwhile, the heavy-assault cruisers were just like their namesake; they were built solely to rush at the enemy with sudden speed, flying at top speed and with high firepower as they blitzed through the core of the enemy formation, directly going for their vitals.