The Hercules-class battlecruiser was a class of heavy cruisers of the Terran Dominion. Along with the Minotaur-class battlecruiser, the Hercules-class was the second-generation battlecruiser used by Terran forces, superceding the older Behemoth-class battlecruiser. The primary focus of the Hercules-class was to maximize the survivability of the vessel and crew; a new tactical objective of the Terran forces during the protracted and terrible Brood War. Thus, the Hercules-class emphasized long-range engagements: it had an upgraded Mark IA Yamato cannon that was inferior to the Mengsk-class's Mark II Yamato cannon, but featured improved recharge times over the Behemoth-class's default Mark I model. The second major revision was the addition of long-range laser batteries — laser batteries with