The reapers have returned from dark space. With Earth under attack and the mass relays in a state of chaos from refugees and the councils fleet engaging reaper forces the galaxy is a mess. The outcome is unknown, the warfare is devastating. The galaxy will never be the same.
Cerberus' first experimentation into their higher echelon designs, this is an in between the cruiser seen in game and their capital ships. First developed before Sovereigns attack on the citadel, its concept line was researched further after the events of ME1