Orbital Platform?
An Orbital Cannon is the only asset capable of firing six MAC rounds in 30 seconds that we know of, so My guess is that it was a Orbital Defense Cannon. DarkbelowHGR CommbandD 06:37, 9 January 2011 (EST)
It could possibly be a destroyer with the same triple shot upgrade as the Pillar of Autunm, that would be six shots from its two MACs. Classius 20:05, 18 February 2011 (EST)