User blog comment:Phalanx Actual/Mantle's Approach Size. 371,385m Height./@comment-1683193-20131012080905

"Apparently the Mantle's Approach is still dwarfed by the largest Forerunner capital ships. Have the writers at 343 literally gone insane with the Forerunner scaling?" It doesn't say that said capital ships are military. They could just be giant mobile space stations or something.