User blog comment:James12708/Reapers VS. Forerunners VS. Angels from Darksiders VS. Humanity from Halo VS. Council and humanity from Mass Effect VS. Imperium of Man/@comment-1683193-20121227123216

This is a stomp for Forerunners. Thier capital ships are 100 kilomiters long, small forerunner ships(smaller than the Normandy) carry firepower in the gigaton range, and forerunner design seeds can build a ship the size of the Destinies Ascension in a few hours.