Halo: The Fall of Reach, Invasion, Issue 1, by Marvel Comics
The weeks after the Battle of Sigma Octanus IV. Captain Keyes is debriefed at Camp Hathcock about the intercepted Covenant transmission and is assigned command of the UNSC Pillar of Autumn. John receives upgrades to his neural interface and is introduced to the MJOLNIR Mark V armor and the suit's AI companion, Cortana. Together, they partake in a field test to ring a bell by going through an obstacle course involving Orbital Drop Shock Troopers, a minefield with Lotus anti-tank mines, automated chain guns, and an unexpected SkyHawk. Meanwhile, out on the edge of the Epsilon Eridani system, Remote Scanning Outpost Fermion receives data from one of its returning Slipstream space probes indicating that a fleet of Covenant ships have arrived in system. Unable to erase vital information, the Fermion self-destructs in accordance with Cole Protocol.
