As two attempted conquests on Earth had occurred within a period of two years, it was decided in a consensus of Earth cultures that the development of a new and massive space fleet was in order. Such a fleet would establish Earth as a grand space power, capable of not simply defending itself from assault, but being swift and effective about it. At this time, all defensive operations against alien invaders and threats upon Earth had been reactionary, with specialized teams and military units being formed to directly counter and eliminate the threat. While this strategy granted victory, there still were many civilian casualties, which caused a great loss in social morale. The Space Police, Galaxy Army Group, and Martian colonies, were pressured, convinced, and payed with Earth's economic power into assisting with the development of a new space fleet. The Nexus Force, now tasked with defending the Imagination Nexus to prevent a new maelstrom, also contributed, as did Explorien. In addition, talented individual builders volunteered their services, and a long development cycle began.
The end result of contribution from a wide variety of factions and minifigures was several competing designs. Instead of deciding on a single design, multiple designs of various sizes were chosen for development and given the title acronyms LCC (LEGO Combat Cruiser), LCV (LEGO Combat Corvette), and LCD (LEGO Combat Destroyer). With Earth's economic power, this wasn't an exhausting challenge, and several years later with construction and manufacturing, the Earth Fleet was completed.
The LCD Cetace was among the classes of vessels built for the Earth Fleet. A surprise offensive vessel, the Cetace Destroyer was designed to make quick jumps into the battle field, unleashing all its firepower in a massive burst from the storage of massive capacitors. The Cetace's primary firepower comes from its pair of beam racks, with six independent beam cannons on both the racks. The vessel also has four large modular slots, capable of holding additional turrets or sensor devices. Beyond this though, the LCD Cetace is slow and more fragile, and has no extraordinary technology in shielding or engine systems.